Abstract
The use of portable air cleaners is becoming increasingly popular in many countries including
Denmark. Portable air cleaners are known for not only removing but also generating particles and
gases. To clarify this, three air cleaning technologies were evaluated. They were nonthermal
plasma, photochemical air purifier and corona discharge ionizer. The concentrations of ultrafine
particles, ozone and total volatile organic compounds were measured both in a duct and in a clean
room. It was found that the studied air cleaning technologies increased the ozone level in the clean
room and the duct. The increase of ozone level in the clean room was more than that was measured
in the duct. Additionally, it was found that the number of ultrafine particles in the room increased
due to the generated ozone. The number of generated particles changed with the season. The study
leads to the recommendation that air cleaners should be evaluated in a clean room about generation
of ozone to get more reliable evaluation.
Denmark. Portable air cleaners are known for not only removing but also generating particles and
gases. To clarify this, three air cleaning technologies were evaluated. They were nonthermal
plasma, photochemical air purifier and corona discharge ionizer. The concentrations of ultrafine
particles, ozone and total volatile organic compounds were measured both in a duct and in a clean
room. It was found that the studied air cleaning technologies increased the ozone level in the clean
room and the duct. The increase of ozone level in the clean room was more than that was measured
in the duct. Additionally, it was found that the number of ultrafine particles in the room increased
due to the generated ozone. The number of generated particles changed with the season. The study
leads to the recommendation that air cleaners should be evaluated in a clean room about generation
of ozone to get more reliable evaluation.
| Originalsprog | Engelsk |
|---|---|
| Titel | Indoor Air |
| Publikationsdato | 2011 |
| Status | Udgivet - 2011 |
| Begivenhed | The 12th International Conference on Indoor Air Quality and Climate (Indoor Air 2011) - Austin, Texas, USA Varighed: 5 jun. 2011 → 10 jun. 2011 Konferencens nummer: 12 |
Konference
| Konference | The 12th International Conference on Indoor Air Quality and Climate (Indoor Air 2011) |
|---|---|
| Nummer | 12 |
| Land/Område | USA |
| By | Austin, Texas |
| Periode | 05/06/2011 → 10/06/2011 |