Air treatment plants

Saudi Arabia 50
Australia 1
Bhutan 1
Canada 2
Chile 2
China 3
Korea 2
Croatia 2
Egypt 5
UAE 9
Philippines 2
France 30
Jordan 8
Greece 10
India 6
Indonesia 4
England 350
Iraq 23
Ireland 120
Israel 1

Italy 540
Malta 2
Moldova 2
Morocco 1
Myanmar 1
Nepal 1
Oman 1
Poland 1
Qatar 4
Russia 6
Slovenia 1
Spain 12
Sweden 1
Thailand 1
Tunisia 2
Turkey 4
Ukraine 1
USA 23
Vietnam 1

California 2
Connecticut 1
Florida 1
Georgia 2
Indiana 2
Maryland 1
Maine 1
Massachusetts 2

New Hampshire 1
North Carolina 3
Ohio 1
Rhode Island 1
South Carolina 2
Texas 2
Utah 1