Recommend air-purifying indoor plants for my home.

Room size: {{room_size}}
Light available: {{light}}
Air issues I'm trying to address: {{concerns}} (pollution, dust, allergies, general health)
Maintenance tolerance: {{maintenance_tolerance}}
Budget per plant: {{budget}}

Return:
1. 5 plants genuinely worth recommending, with what each is best at
2. The honest version: how much air do houseplants actually clean (vs. marketing claims)
3. Realistic number of plants needed for noticeable effect in my space
4. Care fundamentals for each
5. Plants that are dangerous if I have pets / small kids
6. Pairing with practical air quality measures (ventilation, purifiers)
7. The single best pick for my situation