Indoor Air Quality (IAQ)

Filtration (MERV), humidity control, ventilation, dehumidification and air-cleaning — the facts behind comfort and health.

5 guides

• Controlling Indoor Humidity
  Why indoor humidity matters, the sensible-vs-latent split that determines whether an AC actually dehumidifies, the target RH range, and the field causes of a sticky house.
• Dehumidification Strategies
  When the AC alone can't handle the latent load, and the strategies that can — from airflow tuning and dedicated whole-house dehumidifiers to handling crawlspaces and shoulder-season moisture.
• MERV Ratings and Filtration Tradeoffs
  What the MERV scale actually measures, the airflow penalty that comes with higher MERV, and how to pick a filter that cleans the air without choking the blower.
• UV Lamps and Media Air Cleaners — What They Do and Don't
  A straight-talk rundown of UV-C lamps (coil vs air-stream), media and electronic air cleaners, and where each one actually helps versus where it's oversold — facts only, no hype.
• Ventilation Basics and Why Tight Houses Need It
  Why modern airtight homes need mechanical ventilation, the difference between exhaust-only, supply, and balanced (ERV/HRV) strategies, and the airflow rates that keep indoor air healthy.

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