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Jeff Gilchrist: "Warning: Ultrasonic Humidifiers with Tap Water Generate lots of PM2.5 Pollution Since we are in winter and humidity levels are much lower this time of year, I wanted to provide
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![My air quality monitor says my bedroom has a PM2.5 level of 112 and my humidifier seemed to have small but plentiful greyish or blackish mold spots in it. Is there anything My air quality monitor says my bedroom has a PM2.5 level of 112 and my humidifier seemed to have small but plentiful greyish or blackish mold spots in it. Is there anything](https://external-preview.redd.it/my-air-quality-monitor-says-my-bedroom-has-a-pm2-5-level-of-v0-y6MPX3rJOlJwOlJhHH2S45P7EQxFC2q2XQF3lYXh9vU.jpg?auto=webp&s=50848515d15b53dae6d858a6285854c899d58edd)
My air quality monitor says my bedroom has a PM2.5 level of 112 and my humidifier seemed to have small but plentiful greyish or blackish mold spots in it. Is there anything
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