Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was ...

Recent research explores the seasonality of COVID-19 (Hao, 2020; Araujo & Naimi, 2020) and the influence of relative humidity (Moriyama et al., 2020). However, it is the psychrometric overlap of ...

COLD AND WET: When humid interior air contacts colder surfaces, condensation can occur. The blackened roof sheathing in this photo shows signs of moisture damage and is frosting near the fiberglass ...

Abbreviations: IAQ = indoor air quality; HVAC = heating, ventilating and air conditioning; RH = relative humidity; DP = dew point temperature ACCEPTABLE IAQ in commercial buildings can often be ...