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Preservatech’s Maxi One constant volume humidity generator is a fully automatic positive pressure air supply device, designed to provide conservation-quality humidity control for museum display or storage enclosures. A single microclimate unit in a remote location (such as a machine room) can reliably maintain extremely stable humidity control and pollution abatement for an entire gallery of showcases. SUGGESTED APPLICATION: Use these units to supply air to multiple display cases, very large volume showcases, multiple storage enclosures or small archive rooms where: Energy cost savings of up to 50% are to be realized. Accurate humidity control in new or renovated galleries may be expensive or impractical. Existing air conditioning systems or building envelopes cannot maintain adequate humidity control.

The Maxi One S constant volume humidity generator is an automatic, positive pressure humidity control device for museum displays. The Maxi One S offers a unique scalable output: a single unit in remote location can reliably maintain stable humidity levels in multiple small, or one or more very large showcases, up to 80 meters distant. The Maxi One S can provide up to 430 cubic meters of pollution free, clean, humidity controlled air per day.One or more air pumps are used to provide filtered air at the delivery pressure and flow required for the application. In the Maxi One S the air is passed through an cooled water bath to control humidity levels, and distributed to the enclosures via flexible tubing.

The Preservatech Mini One is a miniature humidity control device for museum showcases and storage enclosures. This robust and extremely efficient unit can reliably control humidity in individual or multiple enclosures. The Mini One active microclimate generator is a sixth generation system, satisfying the demanding standards of preventive conservation and modern museum design. It incorporates the most recent developments in electronic humidity control, noise suppression, and pollution abatement — built on the heritage of a family of microclimate control devices extending back to 1978. This positive pressure microclimate control system will typically maintain the relative humidity level in a sealed museum enclosure to within two percent (or less) of your target relative humidity. Depending upon the ambient temperature conditions and enclosure construction, relative humidity levels of less than thirty-five to over eighty percent can be attained.

The PMCG humidity generator is a novel approach for controlling humidity in museum quality display cases. The PMCG units are based on solid state technology – unlike other units, they don’t require filling or emptying of reservoirs. Once the machine is setup, the humidity inside the display case is maintained for years without the necessity of checking the water level, adding water or any other regular maintenance. PMCG devices are able to maintain relative humidity from below 25% up to 60%, at ambient temperatures of below 0°C up to 40°C. The newest models are equipped with a WiFi connection to internet.