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Blueair Smokestop Filter Tests

Gaseous removal efficiency

Fast reduction of odor and gaseous pollutants is best achieved by SmokeStop™ filters. Blueair

SmokeStop™ filters are particle filters with a separate compartment of oxygen activated carbon granules plus compressed sheet carbon. Together, this system provides a highly efficient filter medium to remove gases, odours, VOCs (volatile organic compounds) and smoke.

  

Background

The exposure to gaseous pollutants has increased with the usage of chemical-based household

and personal cleaners, indoor pesticides and aerosol. Also plastics, binders and glues in synthetic

building materials, carpets and furnishing are off gassing. The irritating gases may be factors in a host

of illness, from respiratory disease to chemical sensitivity. Odour causes negative effects as well as

unpleasant feelings. Strong odour has also shown to have significant negative effect on asthma.

  

Standards and certifications

Shanghai Institute of Measurement and Testing Technology tests air purifiers for their removal rate of

formaldehyde and VOCs in accordance with GB/T 18801-2001 and GB/T 18883-2002.

Kitasato Research Center of Environmental Sciences (Japan) tests air purifiers for their filtration efficiency

of malodorous substances. Tests for tobacco smoke was tested in accordance with the

standard JEM 1467.

  

Testing and results

Test results from both mentioned laboratories prove the very high efficiency of Blueair units

using SmokeStop™ filters in reducing gases and odors.

  

VOC filtration efficiency

In 2009, the Shanghai Insitute of Measurement and Testing Technology tested Blueair 503 in removing

VOC. Nature attenuates refers to the natural reduction of VOC in the air without an air purifer present.

Testings were conducted in a 30m3 room (temperature 19-21 ̊ C, humidity 45-55% RH). Initial concentration

of VOC was 4.2 mg/m3. Unit was tested on full speed.

VOC Removal Rate using unit 503

 

Time                                                                      Natural decline                                    with SmokeStop™ filter

2 hours                                                                               7%                                                        96%

3 hours                                                                              11%                                                       98%

  

Tobacco smoke filtration efficiency

In 2010, deodorization test for tobacco smoke was conducted by the Kitasato Research Center

of Environmental Sciences (Japan) in a 1m3 unventilated chamber. The units were operated on full

speed level.

Deodorization Test of smoke after 30 min

                                                                               SmokeStop™ filter                                        Particle filter

650E                                                                                  100%                                                   53.0%

450E                                                                                  100%                                                   42.3%

  

Formaldedyde filtration efficiency

In 2009, the Shanghai Insitute of Measurement and Testing Technology conducted tests on Blueair

503 in removing formaldhyde from the air. Nature attenuates refers to the natural reduction of formaldehyde in the air without an air purifer present.

Tests were conducted in a 30m3 room (temperature 19-21 ̊ C, humidity 45-55% RH). Initial concentration

of formaldehyde was 1.5 mg/m3. Unit was tested on full speed.

Formaldedyde Removal Rate using unit 503

Time                                                                        Nature decline                                   with SmokeStop™ filter

2 hours                                                                            10%                                                         94%

3 hours                                                                            13%                                                         96%

  

  

Other Chemicals filtration efficiency

In 2010, a deodorization performance test was conducted by the Kitasato Research Center of Environmental

Sciences (Japan). The table shows how long it takes (minutes) to eliminate each tested substance to 99% if operating the Blueair 650E on full speed in an unventilated room.

                                                                            Small room (23m3)                                        Living room (78m3)

                                                                  Particle filter     SmokeStop™filter             Particle filter         SmokeStop™filter

Ammonia                                                           191 min           22 min                             635 min                     75 min

Hydrogen Sulfide                                            1944 min           16 min                          6480 min                     53 min

Methyl Mercaptan                                                 N/A               18 min                              N/A                         61 min

Trimetylamine                                                     44 min             26 min                            147 min                      85 min

Formaldehyde                                                    54 min            38 min                            180 min                    127 min  

 

Click here for Particle Filter Efficiency testing.