Cleaner air for a happy, healthier home

Philips air purifiers remove up to 99.9% of aerosols from the air that pass through the filter and contain viruses. The size of the SARS-CoV-2 virus is estimated to be 50 to 140 nanometers (nm). Philips HEPA filters can remove 99.97% of the particles with a size of up to 0.003μm * (corresponds to 3 nm), which is smaller than the smallest known virus **, from the air that passes through the filter, a similar performance is expected for SARS-CoV-2 aerosols.

As with the H1N1 virus, we have started working with renowned partners to prove the effectiveness of our air purifiers in removing coronavirus aerosols. Previously, through independent tests, Philips has proven that its air purifiers reduce the concentration of influenza A (H1N1) virus aerosols in the air passing through the filter by 99.9%.

* Tested with NaClaerosol by iUTA in accordance with DIN71460-1

** Supporting literature for the size of the coronavirus [// Reference source: s Varga et al. The Lancet 2020, Vol 395, May 30th, e100 v *** Microbial Reduction Rate Test at Airmid Health group Ltd., which was carried out in a 28.5m3 test chamber contaminated with airborne influenza A (H1N1). An air purifier alone won't protect against COVID-19, according to the US Environmental Protection Agency, but it can be part of a plan to protect you and your family.

The Airmid Healthgroup test laboratory in Dublin has tested the effectiveness of Philips air purifiers against viruses. They generated an aerosol of the H1N1 flu virus in a 28.5 m3 test chamber and analyzed the number of viruses in the test chamber atmosphere during the test. Airmid found that the Philips air purifier reduced the amount of airborne H1N1 viruses by more than 99.9% in 20 to 40 minutes, depending on the Clean Air Delivery Rate (CADR) of the model tested.

After the viruses are caught in the filter, they naturally become inactive. Depending on the ambient temperature, this can take anywhere from a few minutes to several hours. The viruses are unlikely to spread again from the filter.

Our HEPA filter has a high particle capacity and is designed to effectively capture particles as small as 0.003 microns that will be filtered over its lifetime. For best results, we recommend that consumers change the filter when it has reached the end of its life.

Philips air purifiers create a stream of air with a fan that draws the air through a HEPA filter. Our air purifiers have been proven to remove 99.97% of the particles in the air up to a size of 0.003μm * (corresponds to 3 nm) as well as particles such as bacteria, allergens, soot, dust and smoke from the air that passes through the filter.

* Tested with NaClaerosol by iUTA according to DIN71460-1

Philips air purifiers remove up to 99.9% of aerosols from the air that pass through the filter and that can contain viruses *. As for the SARS-CoV-2 virus that causes COVID-19, the size of the SARS-CoV-2 virus is estimated to be 50 to 140 nanometers (nm). Since Philips HEPA filters can remove 99.97% of particles down to 0.003μm ** (3 nm), which are smaller than the smallest known virus ***, from the air that passes through the filter, a similar performance expected for SARS-CoV-2 aerosols. As with the H1N1 virus, we have started working with renowned partners to prove the effectiveness of our air purifiers in removing coronavirus aerosols. Philips has previously proven through tests by independent institutes that that its air purifiers can reduce the amount of Influenza A (H1N1) virus aerosols from the air that passes through the filter by 99.9%.

*. According to the U.S. Environmental Protection Agency, an air purifier won't protect you from COVID-19 on its own, but it can be part of a plan to protect you and your family.

* Microbial Reduction Rate Test at Airmid Healthgroup Ltd. performed in a 28.5m3 test chamber contaminated with airborne influenza A (H1N1). According to the US Environmental Protection Agency (EPA), an air purifier alone does not protect against COVID-19, but it can be part of a plan to protect you and your family

** Tested with NaClaerosol by iUTA in accordance with DIN71460-1

*** Supporting literature for the size of the coronavirus [ // Source of supply: s Varga et al. The Lancet 2020, Vol 395, May 30, e100 v.

We recommend disposing of the filter in a disposable bag, then washing your hands for at least 20 seconds, following advice from your local health authority on handling potentially infected surfaces.

CADR is the volume of filtered air given off by an air purifier. It is a measure of the speed of cleaning and a reflection of the airflow times the filter efficiency.

Therefore, a separate air flow for measuring the performance of air purifiers is meaningless, it is unfiltered air. Only when you take into account how much air has been filtered can we name the amount of really clean air.

For example, if the air flow is 500 m3 / h, the filter efficiency is 50%, CADR is only 250 m3 / h - and only delivers 250 m3 of clean air in an hour.

CADR measures the cubic meter of filtered air per hour, it is about the cleaning speed. Therefore:

• The larger the room, the higher the CADR required to clean the room.
• The dirtier the room, the higher the CADR must be.

Since the outside environment is a critical factor in the indoor air, the same CADR could clean a larger room in countries with lower pollution levels. Therefore, different standards for calculating the room size have been created by different countries, which are tailored to the respective situation.