| Business | Phone |
| Air Clean Ducts Po Box 1833, Vancouver 98668 | (360) 834-1235 |
| Industrial Air Cleaners Inc Vancouver 98661 | (360) 693-8198 |
| Southwest Clean Air 11815 Ne 99th St, Vancouver 98682 | (360) 604-4764 |
| Southwest Clean Air Agency 11815 Ne 99th St 1294, Vancouver 98682 | (360) 574-3058 |
| Northwest Air Care 1900 W 39th St, Vancouver 98660 | (360) 823-0192 |