| Business | Phone |
| Envitech 2924 Emerson St, San Diego 92106 | (619) 223-9925 |
| Aair Purification Systems 9040 Kenamar Dr # 402, San Diego 92121 | (858) 578-2825 |
| Air Purification Technologies Po Box 17155, San Diego 92177 | (858) 273-2920 |
| Air Quality Team 2850 Reynard Way, San Diego 92103 | (619) 296-2030 |
| Pure Quest 5037 Randall St, San Diego 92109 | (858) 272-5228 |
| People's Air Purifiers 3150 Main St # 1, San Diego 92113 | (619) 000-1111 |
| Novatron Inc 5955 Mira Mesa Blvd, San Diego 92121 | (858) 638-7100 |