What filters should I use with my Philips Air Purifier?
When you wonder which filters to use with your Philips Air Purifier, please find here if we can answer your questions

Philips Air Purifier filters
Your Philips Air Purifier comes with multiple filters, and warns you when a filter must be replaced: when one of the filters is almost full and has to be cleaned or replaced, the appropriate filter replacement light starts to flash to prompt you to replace that filter. That is how you know which filter to replace.
Please find here what filter applies to your Philips Air Purifier

Depending on the Air Purifier you have, you might see different types of filter replacement alert lights:

A) Purifiers AC400x, AC401x, AC402x, AC407x, AC408x, ACP073x, ACP077x, ACP007x:

Filter replacement light 1
Filter replacement light 2
Filter replacement light 3/4
Filter replacement light 5
See further explanations below.

B) All other purifiers:
Purifiers that do not belong to the list mentioned above, show a filter replacement alert light or an error code (models with a display panel).

See further explanations below.

A) Purifiers AC400x, AC401x, AC402x, AC407x, AC408x, ACP073x, ACP077x, ACP007x:
When filter replacement light 1 flashes (in red)
The pre-filter needs to be cleaned. You can wash it under running tap and dry it completely it before installing it back. Alternatively, you can clean it using a vacuum cleaner.

When the filter replacement light 2 is on or flashing (in red)
When the filter replacement light 2 flashes or is on continuously, you need to replace the multi-care filter (for Air purifier AC4004 only). This filter cannot be washed. After replacement, make sure you reset your appliance

The filter replacement light 3/4 is on (in red)
The filter 3 (activated carbon filter) and filter 4 (HEPA filter) need to be replaced. After replacing them, make sure you reset your purifier. Please note that these filters cannot be washed.

The filter replacement light 5 flashes (in red)
This light indicates that the humidification filter should be replaced.

B) All other purifiers
In this case (and for models without a display screen), your Philips Air Purifier has a filter replacement light. This light will stay on and be red.

If your purifier has a display screen, then it will show one of the following error codes:

Codes A1 to A9:
Replace NanoProtect S3 HEPA filter.

Codes C1 to C9:
Replace the NanoProtect S3 AC filter.

Code: F0
Clean the Pre-filter.

What is the specification CADR in my Philips Air Purifier?
If you would like to know what the specification CADR mentioned in your Philips Air Purifier’s package or leaflet is, read here about it.

What is CADR?
CADR stands for Clean Air Delivery Rate.

It indicates the volume of filtered air delivered by your Philips Air Purifier. Your Air Purifier will run faster when the amount of particles, tobacco smoke, pollen and dust increases.

Can I clean the filters and pre-filter of my Philips Air Purifier?
You can clean or wash the pre-filter (indicated as C in the image below).

The other filters (indicated as A and B in the image below) cannot be washed: they need to be replaced. Please check your user manual to see replacement indications specific for your model.

* This Philips Clean Filter image image is for illustration purpose only. Actual image may vary.

What does the PM2.5 indicator in my Philips Air Purifier mean?
PM2.5 is a scale for measuring real time air quality. Its values vary from 0 to 500.

The PM2.5 indication is connected to your Philips Purifier’s air quality ring light to inform you in real time about the quality of the ambient air.

The different colors indicate the following:

Blue: good.

Blue-violet: fair

Red-Purple: unhealthy

Red: very unhealthy

What do my Philips Air Purifier’s lights mean
If you wonder what the air quality lights or ring lights of your Philips Air Purifier mean, please find out here.

Air purifiers with air quality ring lights
You can see the quality of air your Philips Air Purifier is cleaning using the air quality lights (see image below). The different colors indicate the following:

Blue: good

Blue-violet: fair

Red-Purple: unhealthy

Red: very unhealthy

How and when should I clean/replace my Air Purifier’s filters and sensor?
Find out here when and how you should clean or replace the pre-filter, the filters and the quality sensor of your Philips Air Purifier.

Note: All images shown below are generic representations only; there can be some differences among specific appliances.

* This Philips Clean Filter image image is for illustration purpose only. Actual image may vary.

When to clean the filters
The filters (A and B in the image above) are not washable nor vacuum cleanable. These filters need to be replaced. Please check your manual to see the replacement indications for your specific purifier model.

When to replace the filters
When the filters (A and B in the image above) become dirty, they need to be replaced.
Replace the multi-care filter, the activated carbon filter, and the HEPA filter when the respective indicators light up. Please check the user manual since every specific purifier will indicate this in a different way (e.g. some purifiers indicate this with a C7 indicator and other models indicate it with 2 ,3 or 4).

When to clean the air quality sensor
The air quality sensor (D in the image above) should be cleaned every two months.
Please, check the cleaning instructions for your specific Air Purifier in your user manual.
If you use your Philips Air Purifier in a dusty or high humidity environment, then please clean it more frequently.

When to clean the pre-filter
Your Philips Air Purifier’s pre-filter (C in the image shown above) is washable and should be cleaned every month to ensure its optimal functioning.

You should clean the pre-filter when F0 is displayed on your air purifier’s display.

To clean the pre-filter, please follow these steps:

Switch off the appliance and unplug it from the wall outlet.

Pull the bottom part of the panel (located at the front or at the back of your purifier, depending on your specific model) and remove it from the appliance (see image below).

Press the two clips down and pull the pre-filter towards you.

Wash the pre-filter under a running tap. If the pre-filter is very dirty, use a soft brush to brush away the dust.

Air dry the pre-filter until it is completely dry.

* This Philips Clean Filter image is for illustration purpose only. Actual image may vary.

Should I reset my Philips Air Purifier or Humidifier after replacing a filter?
Your Philips Air Purifier or Humidifier needs to be reset after each filter replacement. This is done to activate the counting system for the new filter(s).

Also, your air purifier/humidifier is equipped with a filter replacement alert. It warns you when the filter needs to be cleaned (pre-filter only) and replaced.

If you do not reset the air purifier or humidifier after replacing a new filter, the appliance will alert you to replace a filter.

What do the codes on my Philips Air Purifier mean?
Your Philips Air Purifier gives you reassurance by displaying real-time indoor air quality codes. Discover what the codes mean.

Meanings of codes in Philips Air Purifiers
Depending on the Air Purifier model you have, you might find one or more of the following indicators or codes:

Code: A
Auto mode

Code: L
Child lock on

Code: UL
Child lock off

Code: F0
Clean the pre-filter

Code: A0 to A9
Replace NanoProtect S3 HEPA filter

Code C0 to C9:
Replace NanoProtect S3 AC filter

Code SL
Sleep Mode

Code 1h:
Timer mode

Code t:
Turbo Mode.

Error Code: Er
The hall sensor is not working properly. Remove and then reattach the front panel. If the error code “Er” still persists, we recommend you to contact us.

Error code: E1 to E4
The appliance has malfunctions. In this case, we recommend you to contact us.