BEURER LR 300 - Air purifier

LR 300 - Air purifier BEURER - Free user manual and instructions

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How to reset errors on the BEURER LR 300 air purifier?
Frequently Asked Questions - 06/04/2026
Response Notice-Facile

To reset errors on the BEURER LR 300 air purifier, follow these simple steps:

  • Turn off the device and unplug it from the electrical outlet.
  • Wait a few minutes to allow the device to fully reset.
  • Plug the air purifier back into the electrical outlet.
  • Turn on the device and check if the error has disappeared.

If the error persists, it is advisable to check the condition of the filters and other components, as a clogged or improperly installed filter can generate alerts. Also, ensure that the sensor and internal connections are not blocked or damaged.

If the problem continues, contacting customer service or a specialized technician can help you diagnose and resolve the issue.

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Download the instructions for your Air purifier in PDF format for free! Find your manual LR 300 - BEURER and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. LR 300 by BEURER.

USER MANUAL LR 300 BEURER

natural_image White beurer appliance with control buttons and indicator lights (no visible text or symbols on body)

BEURER LR 300 - 1

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EN Air purifier Instructions for use .... 12

text_image Exploded view diagram of a device with numbered parts for identification
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White rectangular electronic device with open lid and internal compartments, labeled with arrows 1 and 2 (no text or symbols on the device itself)
natural_image Interior view of a white electronic device casing with black panel and control buttons (no visible text or symbols)
natural_image Exterior view of a white electronic device casing with black panel and control buttons (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C 4H 8H

Read these instructions for use carefully and keep them for later use, be sure to make them accessible to other users and observe the information they contain.

Table of contents

  1. Getting to know your device....13
  2. Intended use ....14
  3. Notes ......14
  4. Device description....15
  5. Initial use....16
    5.1 Removing the air purifier 16
    5.2 Setting up the air purifier....16
  6. Operation....17
    6.1 Switching on the air purifier 17
    6.2 Automatic function .....17
    6.3 Fan speed 17
    6.4 UV-C light 17

6.5 Timer function 17

6.6 Filter change....18

  1. Cleaning and storage....19

7.1 Cleaning the filter 19

7.2 Cleaning the housing....19

7.3 Storage....19

  1. What to do if there are problems? ......20

  2. Disposal....20

  3. Replacement parts and wearing parts ...20

  4. Technical data....21

  5. Warranty/service 21

BEURER LR 300 - Table of contents - 1

WARNING

  • This device may be used by children over the age of eight and by people with reduced physical, sensory or mental skills or a lack of experience or knowledge, provided that they are supervised or have been instructed on how to use the device safely, and are fully aware of the consequent risks of use.
  • Children must not play with the device.
  • Cleaning and user maintenance must not be performed by children unless supervised.
  • Disconnect the device from the mains supply during cleaning.
  • Clean the device using only the methods specified. Under no circumstances must liquid enter the fan unit.
  • Do not use any solvent-based cleaning products.
  • If the mains connection cable of this device is damaged, it must be disposed of. If it cannot be removed, the device must be disposed of.

Dear customer,

Thank you for choosing one of our products. Our name stands for high-quality, thoroughly tested products for applications in the areas of heat, gentle therapy, blood pressure/diagnosis, weight, massage, beauty, air and babycare.

With kind regards,

Your Beurer team

Included in delivery

  • 1x air purifier
  • 1x combi filter (activated carbon/EPA filter class E 12)
  • 1x pre-filter
  • 1 x set of instructions for use

Signs and symbols

The following symbols appear in these instructions for use:

BEURER LR 300 - Signs and symbols - 1WARNINGWarning instruction indicating a risk of injury or damage to health
BEURER LR 300 - Signs and symbols - 2IMPORTANTSafety note indicating possible damage to the device/accessory
BEURER LR 300 - Signs and symbols - 3NoteNote on important information
BEURER LR 300 - Signs and symbols - 4PAPDispose of packaging in an environmentally friendly manner

1. Getting to know your device

Humans spend a large proportion of their time indoors. The air indoors is often polluted with dust particles, pollen, animal hair, odours, harmful gases as well as various bacteria and viruses. The LR 300 air purifier cleans the ambient air using a three-layered filter system and an in-built UV-C light.

The LR 300 air purifier

  • Filters air with a combi filter (activated carbon filter against harmful gases and unpleasant odours, EPA filter E 12 against particles such as bacteria, viruses, mites, pollen and fine dust)
  • Has an in-built UV-C light (to kill germs)
  • Operates quietly with three output levels
  • Has a timer function (two, four or eight hours)
  • Suitable for rooms up to 35m^2 in size
  • Energy-saving
  • Switches off automatically when the housing cover is removed.

Principle of air cleaning

  1. The air purifier's fan sucks in the contaminated air.
  2. The pre-filter filters larger particles such as dust, dirt and hairs.
  3. Next, the activated carbon filter filters formaldehyde, benzene and other poisonous gases and odours out of the ambient air.
  4. Lastly, the EPA filter filters out small particles such as pollen, bacteria or viruses.
  5. The switchable UV-C light inside the housing eliminates germs and odours (caused by animals, cooking or tobacco smoke).
  6. The cleaned air is emitted into the ambient air via the air outlet on top of the air purifier.

BEURER LR 300 - Principle of air cleaning - 1

The EPA E 12 filter has a filter performance of ≥ 99.5% . That means that 99.5% of particles (e.g. bacteria, viruses and fine dust) can be filtered out.

Contaminated, unfiltered air can have the following effects:

  • Infections and respiratory diseases are more likely to occur
  • Damage to health through harmful gases

2. Intended use

This air purifier is intended exclusively for cleaning the air indoors.

BEURER LR 300 - Intended use - 1

WARNING

If you suffer from severe respiratory or lung disease, consult your doctor before using the air purifier.

This device must only be used for the purpose for which it was designed and in the manner specified in the instructions for use. Improper use can be dangerous. The manufacturer is not liable for damage resulting from improper or careless use.

3. Notes

Read the notes carefully! Non-observance of the following information may result in personal injury or material damage.

BEURER LR 300 - Notes - 1

WARNING

Keep packaging material away from children to avoid danger of suffocation.

Electric shock

BEURER LR 300 - Electric shock - 1

WARNING

As with every electrical device, use this air purifier carefully and cautiously, in order to avoid hazards due to electric shock.

  • Therefore, observe the following instructions for use:
  • do not operate the device at voltages other than those indicated on the device (the type plate is located underneath the device)
    – never if it or its accessories show visible signs of damage
    – not during a thunderstorm
  • In the event of defects or operational faults, switch the device off immediately and disconnect it from the mains socket. Do not pull on the mains cable or on the device to disconnect the plug from the socket. Never hold or carry the device by the mains cable. Keep the cables away from hot surfaces.
  • Always switch off the device before disconnecting it from the mains.
  • Never disconnect the mains plug with wet or damp hands.
  • Keep the device away from sources of heat as the housing could melt and trigger a fire.
  • Ensure that the openings of the device and the mains cable do not come into contact with water, steam or other liquids.
  • Do not use the device in close proximity to flammable or explosive gas mixtures.
  • Never reach for a device that has been submerged in water. Disconnect it from the mains plug immediately.
  • Do not use the device if it or its accessories are visibly damaged.

Repairs

BEURER LR 300 - Repairs - 1

WARNING

  • Only specialist personnel may perform repairs on electrical devices. Improper repairs may subject users to considerable danger. For repairs, please contact Customer Services or an authorised retailer.
  • Do not open the fan unit.

Risk of fire

BEURER LR 300 - Risk of fire - 1

WARNING

There is a risk of fire if the device is used improperly or these instructions for use are ignored.

Therefore, observe the following instructions for using the air purifier:

  • Never use underneath a cover, such as a blanket, pillow etc.
  • Never use near petrol or other highly flammable substances.

Handling

BEURER LR 300 - Handling - 1

IMPORTANT

The device must be switched off and disconnected from the mains after every use and before cleaning.

  • Do not place any objects in device openings or in rotating parts. Ensure that the moving parts can move freely at all times.
  • Do not place any objects on the device.
  • Do not expose the device to high temperatures.
  • Protect the device against sunlight and impacts and do not drop it.
  • Never shake the device.
  • Place the device on a firm, level and water-resistant surface.

4. Device description

BEURER LR 300 - Device description - 1

text_image Exploded view diagram of a device showing numbered components for assembly or maintenance reference.
1. Air outlet5. Housing cover
2. Combi filter (activated carbon filter/EPA filter E 12)Activated carbon filter: To counter harmful gases and unpleasant smellsEPA filter E 12: Filters particles such as bacteria, viruses, mites, pollen and fine dust6. UV-C lightEliminates germs and odours (caused by animals, cooking or tobacco smoke) inside the housing
3. Pre-filterFilters coarse dust and dirt, such as hairs7. Housing
4. Control panel8. Air inlet

Display and buttons

BEURER LR 300 - Display and buttons - 1

text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
1 ON/OFF buttonSwitches the device on/off4 UV-C light buttonUV-CSwitches the UV-C light on/off
2 AUTO buttonAUTOActivates the automatic function (fan speed automatically adapts to the ambient air quality and the LED is lit continuously). If the light below "Replace Filter" is flashing, change the filter. After changing the filter, hold down the AUTO button to reset the automatic counter for the filter change.5 TIMER buttonThe air purifier features a timer function that you can use to determine the number of hours the air purifier should run for before it automatically switches itself off. The air purifier has three timer periods: 2H (two hours), 4H (four hours) and 8H (eight hours).
3 FAN SPEED buttonThe air purifier has three fan speeds: (low), (medium) and (high).

5. Initial use

5.1 Removing the air purifier

  1. Open the cardboard packaging.
  2. Remove the device from the top of the box without opening the film bag.
  3. Now remove all plastic films. Remove the combi filter from the device (see "Filter change" section) and take it out of the plastic film. Then re-insert the combi filter into the device.
  4. Check the device, mains plug and cable for damage.

5.2 Setting up the air purifier

  1. Place the air purifier on a firm, level surface to prevent vibrations and noise.

BEURER LR 300 - Setting up the air purifier - 1

IMPORTANT

If you wish to reposition the air purifier, only carry it by the handle on the rear of the device.

  1. Set up the air purifier in such a way that provides 30 cm clearance on all sides.
  2. Make sure that the air inlet and air outlet are never blocked.

6. Operation

6.1 Switching on the air purifier

  1. Always follow the instructions in chapter "5 Initial use".
  2. Insert the mains plug into the socket. Ensure that the cable does not pose a trip hazard.
  3. Press the ON/OFF button (☐) to switch on the air purifier.

BEURER LR 300 - Switching on the air purifier - 1

Note

When the air purifier is used for the first time it is set to the middle fan speed.

6.2 Automatic function AUTO

The air purifier has an automatic function. When the automatic function is switched on, the fan speed automatically adapts to the ambient air quality. This means that, the poorer the quality of the ambient air, the higher the fan speed automatically set by the air purifier.

  1. To switch on the automatic function, press the AUTO button while the air purifier is switched on (AUTO). As soon as the automatic function is active, a light goes on above the AUTO button.
  2. Press the AUTO button (AUTO) again to switch off the automatic function. The light above the AUTO button goes out.

BEURER LR 300 - Automatic function AUTO - 1

Note

If the light above the AUTO button is flashing, you must replace the filter. To do this, follow the instructions in the "Filter change" section.

6.3 Fan speed

BEURER LR 300 - Fan speed - 1

The air purifier has three fan speeds: ▲ (low), ▲ (medium) and ▲ (high).

- To switch between the individual fan speeds, press the fan speed button ⚙. The fan speed that is currently set lights up on the control panel.

6.4 UV-C light

BEURER LR 300 - UV-C light - 1

The UV-C light eliminates germs contained in the air. Here the UV-C light activates titanium oxides that break down the foul-smelling odour molecules (caused by tobacco smoke, cooking smells or animals).

  1. To switch on the UV-C light, press the UV-C button on the air purifier while it is switched on (uv-c). As soon as the UV-C light is active, a light goes on above the UV-C button.
  2. Press the UV-C button (uv-c) again to switch off the UV-C light. The light above the UV-C button goes out.

6.5 Timer function

The air purifier features a timer function that you can use to determine the number of hours the air purifier should run for before it automatically switches itself off. The air purifier has three timer periods: 2H (two hours), 4H (four hours) and 8H (eight hours).

  • To switch between the individual timer periods, press the TIMER button (☐) The TIMER period that is currently set lights up on the control panel. The air purifier will now automatically switch off after the set number of hours has passed.
  • To switch off the timer, repeatedly press the TIMER button (☐), until the light above the TIMER button goes out. The air purifier now cleans continuously.

6.6 Filter change

The three-layered filter should be replaced with a new one after 4320 operating hours. After 4320 operating hours, a blue LED flashes above the AUTO button. To change the filter, proceed as follows:

BEURER LR 300 - Filter change - 1

text_image AUTO UV-C 2H 4H 8H
  1. Press the ON/OFF button to switch off the air purifier, and unplug it from the socket.

BEURER LR 300 - Filter change - 2

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  1. Remove the housing cover as shown (magnetic fastening). Firstly detach the magnetic fastening at the bottom, and then at the top.

BEURER LR 300 - Filter change - 3

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  1. Pull out the pre-filter. Now, to pull out the combi filter, pull carefully on the side tabs.

BEURER LR 300 - Filter change - 4

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  1. Insert a new combi filter. To insert the combi filter correctly, align it with the side tabs as shown. Position the pre-filter above it.

BEURER LR 300 - Filter change - 5

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  1. Re-insert the housing cover as shown until you see and hear it click into place (magnetic fastening). First attach the magnetic fastening at the top, and then at the bottom.

BEURER LR 300 - Filter change - 6

text_image REPLACE FILTER AUTO UV-C
  1. Insert the mains plug into the socket. Ensure that the cable does not pose a trip hazard. Press and hold the AUTO button (AUTO) for five seconds. The operating hours counter now resets to 0.

If you wish to change the combi filter at specific personal intervals (e.g. every six months), there is a sticker on the upper edge of the combi filter on which a date can be entered.

7. Cleaning and storage

BEURER LR 300 - Cleaning and storage - 1

WARNING

Before cleaning, always ensure that the mains plug of the air purifier has been properly disconnected.

7.1 Cleaning the filter

Regular cleaning of the filter (once a month) is a prerequisite for hygienic and fault-free operation.

- Clean the three-layered filter using the brush attachment of a vacuum cleaner. To carry out a thorough clean, pull out the pre-filter and clean the activated carbon filter located behind it and the EPA filter located at the rear, also using the brush attachment from a vacuum cleaner. Then replace the pre-filter on the EPA filter.

Activated carbon filterEPA filter E 12
BEURER LR 300 - Cleaning the filter - 1BEURER LR 300 - Cleaning the filter - 2
FrontRear

BEURER LR 300 - Cleaning the filter - 3

IMPORTANT

The three-layered filter should be changed after 4320 operating hours (see "Filter change" section). The three-layered filter cannot be washed.

7.2 Cleaning the housing

Clean the housing of the air purifier with a damp cloth (water or a mild cleaning solution). When cleaning, do not use any solvents or other aggressive or abrasive cleaning agents, as the surface may become damaged.

7.3 Storage

If you do not plan to use the device for a long period of time, we recommend that you clean it and store it in the original packaging in a dry environment, ensuring it is not weighed down by additional items.

8. What to do if there are problems?

ProblemCauseSolution
The air purifier will not switch onThe housing cover is not correctly installed.Ensure that the housing cover is correctly installed.
The three-layered filter is not correctly inserted.Ensure that the three-layered filter is correctly inserted.
The mains part plug is not plugged in.Plug the mains part plug into a suitable socket.
Insufficient passage of airThe filters are dirtyClean the filters (see "Maintenance and cleaning" section).
The air intake/air outlet is blocked.Ensure that the air intake/air outlet is not blocked.
Air cleaner is very loudThere is a foreign body in the air intake/air outlet.Remove the foreign body from the air intake/air outlet.
The filters are clogged.Clean the filters (see "Maintenance and cleaning" section).
The filters are not correctly inserted.Insert the filters correctly.
The air purifier is positioned on an uneven surface.Position the air purifier on a level surface.

9. Disposal

For environmental reasons, do not dispose of the device in the household waste at the end of its useful life. Dispose of the unit at a suitable local collection or recycling point. Dispose of the device in accordance with EC Directive – WEEE (Waste Electrical and Electronic Equipment). If you have any questions, please contact the local authorities responsible for waste disposal.

BEURER LR 300 - Disposal - 1

10. Replacement parts and wearing parts

Replacement parts and wearing parts are available from the corresponding service address (according to the service address list). Please state the corresponding order number.

DesignationItem number and/or order number
Pre-filter, combi filter (EPA + activated carbon)660.12

11. Technical data

ModelLR 300
Mains voltageSee type plate on the device
Output50 W
Dimensions (L x W x H)324 x 162 x 409 mm
Weight when empty4.5 kg
UV lightWave length 254 nm; service life approx. 20,000 hours
Suitable for roomsapprox. 35 m^2
Permissible operating conditions+5°C to +40°C, ≤ 90% relative humidity (non-condensing)
Protection classProtection class II / [☐]

12. Warranty/service

In case of a claim under the warranty please contact your local dealer or the local representation which is mentioned in the list “service international”.

In case of returning the unit please add a copy of your receipt and a short report of the defect.

The following warranty terms shall apply:

  1. The warranty period for BEURER products is either 3 years or- if longer- the country specific warranty period from date of Purchase.

In case of a warranty claim, the date of purchase has to be proven by means of the sales receipt or invoice.

  1. Repairs (complete unit or parts of the unit) do not extend the warranty period.

  2. The warranty shall not be valid for damages because of

a. improper treatment, e.g. nonobservance of the user instructions.

b. repairs or tampering by the customer or unauthorised third parties.

c. transport from the manufacturer to the consumer or during transport to the service centre.

d. The warranty shall not be valid for accessories which are subject to normal wear and tear (cuff, batteries etc.).

  1. Liability for direct or indirect consequential losses caused by the unit are excluded even if the damage to the unit is accepted as a warranty claim.

FRANÇAIS

BEURER LR 300 - FRANÇAIS - 1

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text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
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natural_image Exterior view of a white electronic device casing with black insulation and mounting holes (no text or symbols visible)
natural_image Exterior view of a white electronic device casing with black insulation and control panel (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C 4H 8H
text_image Exploded view diagram of a device with numbered parts for identification
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White rectangular electronic device with open lid and internal compartments, labeled with arrows 1 and 2 (no text or symbols on the device itself)
natural_image Interior view of a white electronic device casing with black panel and control buttons (no visible text or symbols)
natural_image White electronic device casing with black panel and control buttons, no visible text or symbols
text_image REPLACE FILTER AUTO UV-C 4H 8H
text_image Exploded view diagram of a device with numbered parts for identification
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White open electrical enclosure with two arrows indicating directional movement (no text or symbols)
natural_image Exterior view of a white electronic device casing with black insulation and mounting holes (no text or symbols visible)
natural_image Exterior view of a white electronic device casing with black panel and control buttons (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C
text_image Exploded view diagram of a device showing numbered components for assembly or maintenance reference.
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White open refrigerator with gray interior and two arrows pointing to the front panel (no text or symbols visible)
natural_image Interior view of a device casing with black panel and control buttons (no visible text or symbols)
natural_image Exterior view of a white electronic device casing with black insulation and mounting brackets (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C 4H 8H
text_image Exploded view diagram of a device with numbered parts for identification
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White rectangular electronic device with open lid and internal compartments, labeled with arrows 1 and 2 (no text or symbols on the device itself)
natural_image Exterior view of a white electronic device casing with black insulation and mounting holes (no text or symbols visible)
natural_image Exterior view of a white electronic device casing with black insulation and mounting holes (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C 4H 8H
text_image Exploded view diagram of a device showing numbered parts from top to bottom, likely for assembly or labeling purposes.
text_image REPLACE FILTER 2H 4H 8H 1 AUTO 3 UV-C 4 5
natural_image White rectangular electronic device with open lid and internal compartments, labeled with arrows 1 and 2 (no text or symbols on the device itself)
natural_image Exterior view of a white electronic device casing with black insulation and mounting brackets (no text or symbols visible)
natural_image Exterior view of a white electronic device casing with black insulation and mounting holes (no text or symbols visible)
text_image REPLACE FILTER AUTO UV-C 4H 8H
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Product information

Brand : BEURER

Model : LR 300

Category : Air purifier