Humidification close to the declared area without air exchange, it is better to take with a margin, the product in the kit has a trace in the air . It is possible without it - I add a neutral pav.
Dyson AM10 Humidifier: Efficient White/Silver Moisture Control
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Deerma DEM-F628S EU Aroma Air Humidifier, white
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Humidifier Smartmi Evaporative Humidifier 2, CJXJSQ04ZM Global, white
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BONECO W200 Air Washer: Humidifier and Purifier for Improved Air Quality
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