PF40 - Air purifier IQAir - Free user manual and instructions

Product Type	Air Purifier
Brand	IQAir
Model	PF40
Weight	Approximately 16 kg (35.3 lbs)
Dimensions (H x W x D)	71 x 38 x 38 cm (28 x 15 x 15 in)
Power Supply	220-240 V, 50/60 Hz, 1.8 Amps
Maximum Power Consumption	130 W
Filtration Stages	Pre-filter, HyperHEPA filter, activated carbon
Fan Speeds	6 speeds including turbo mode
Coverage Area	Up to 140 m² (1500 ft²) at 4 air changes per hour
CADR (Particulate)	467 m³/h (275 CFM)
Noise Level (Max)	65 dB(A)
Air Quality Sensor	PM2.5 and gas sensor with real-time display
Filter Replacement Indicator	Yes, based on usage time
Filter Life (HyperHEPA)	Approximately 24 months under normal use
Maintenance: Pre-filter cleaning	Vacuum every 3 months
Maintenance: Carbon filter replacement	Every 12 months
Safety Features	Auto shut-off when front panel opened; child lock
Certifications	AHAM, Energy Star, CARB
Warranty	3 years limited warranty, filter warranty excluded

Frequently Asked Questions - PF40 IQAir

How often should I replace the filters on my IQAir PF40?

The HyperHEPA filter should be replaced approximately every 24 months under normal use. The pre-filter should be vacuumed every 3 months and replaced if damaged. The activated carbon filter typically lasts 12 months. Always check the filter replacement indicator on the unit for accurate intervals.

What room size is the PF40 suitable for?

The PF40 is designed for rooms up to 140 m² (1500 ft²) at 4 air changes per hour. For smaller rooms, it can operate at lower speeds to reduce noise.

How do I clean the pre-filter?

Turn off and unplug the unit. Open the front panel and remove the pre-filter. Use a vacuum cleaner with a soft brush attachment to gently clean both sides. Do not wash with water. Reinstall when dry.

Is the IQAir PF40 quiet during operation?

Noise level ranges from 25 dB(A) on the lowest speed to 65 dB(A) on turbo mode. At typical nighttime speeds, it is very quiet and suitable for bedrooms.

Does the PF40 remove odors and gases?

Yes, the PF40 includes an activated carbon filter that effectively removes odors, VOCs, and other gaseous pollutants. The HyperHEPA filter captures particles as small as 0.003 microns.

Can I use the PF40 continuously 24/7?

Yes, the PF40 is designed for continuous operation. It has a durable motor and low power consumption. It is Energy Star certified for energy efficiency.

What is the warranty on the IQAir PF40?

IQAir offers a 3-year limited warranty covering manufacturing defects. Filters are consumables and are not covered under warranty.

How do I reset the filter replacement indicator?

After replacing the filters, press and hold the Filter Reset button (marked with a wrench icon) for 3 seconds until the indicator light turns off. Refer to the manual for exact steps.

Where can I purchase replacement filters?

Replacement filters are available through IQAir's official website, authorized dealers, and selected online retailers. Use only genuine IQAir filters to maintain performance and warranty.

What does the air quality sensor display?

The front panel shows real-time PM2.5 levels and a color-coded LED (green, yellow, orange, red) indicating air quality. It also detects gas pollutants and adjusts fan speed automatically in auto mode.

USER MANUAL PF40 IQAir

PF40 Coarse Dust Pre-Filter

Diagram showing layered construction of a solar panel with numbered components and supporting structures.

1. Filter grille
2. Eight Torx-screws
3. Coarse dust filter pad
4. Second filter grille
5. Four plastic clips

Fitting PF40

Interior view of a white plastic enclosure with grid-patterned internal structure (no text or symbols visible)

1 To gain access to the base of the IQAir device, carefully lay the IQAir system on the floor. Do not place the device onto its side arms. To avoid scratching the IQAir housing, place the device on a soft surface, such as a towel.

Close-up of a hand adjusting a plastic panel with grid lines inside an open air conditioner casing (no text or symbols visible)

2 Insert the filter grille with the holes along the edge into the base of the IQAir system.

Close-up of a white plastic housing component with internal grid structure being adjusted by a hand (no text or symbols visible)

3 Secure the filter grille with the eight Torx-screws and screw driver supplied with the installation kit. Ensure that all screws are tight, but be careful not to over-tighten the screws.

Close-up of a hand opening a white plastic electronic device casing (no text or symbols visible)

4 The PF40 coarse dust filter pad has a rough, cottony side and a smooth side. Place the filter on top of the filter grille with the rough, cottony side facing outward. When properly installed the rough, cottony side will be facing the floor when the system is in its upright position.

Fitting PF40

Interior view of a white electric fan or compressor unit with visible internal grid structure and hand pointing to the interior (no text or symbols)

5 To hold the filter pad securely in position, place the second filter grille over the filter. The metal tabs have to face outward.

Hand installing a grid panel into an open air conditioner housing (no text or symbols visible)

6 Secure the filter grille by sliding the supplied plastic clips into the pre-cut slots in the base of the IQAir system.

Interior view of a white plastic enclosure with grid pattern and internal components (no text or symbols visible)

7 When all four clips have been fitted, carefully lift the IQAir device into its upright position again. To replace the coarse dust filter, simply remove the plastic clips and the second filter grille to gain access to the filter pad.

Washing the PF40 filter pad

The filter pad may be washed several times before it needs to be replaced.

To wash the PF40 filter pad simply take the filter pad out of the PF40 frame and rinse the pad under cold water und wipe it gently. Do not use soap or any other cleaners. Let the pad air dry completely before putting it back onto your IQAir system.