Defensor PH15 Mobile Humidifier and Air Purifier

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Defensor PH15

Large mobile humidifier and purifier

The Defensor PH15 mobile humidifier and purifier delivers up to 1.7L/h humidification output, ideal for museeums, galleries, churches (organs) and offices. Quiet, efficient, and easy to control. A fan draws dry air through the side grilles. The air absorbs moisture and blows itt into the room through the vent at the top of the humidifier.

Defensor PH15 mobile humidifier and air purifier

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Digital controls and timer

User-friendly digital controls make operating the PH15 simple and precise. The intuitive display shows key settings, operating status, and humidity levels at a glance. A programmable timer supports automated operation, helping maintain consistent air quality while optimizing energy use throughout the day. This humidifier is equipped with an integrated hygrostat. The key lock prevents unwanted input of settings. An external wireless sensor is available as an option.

Humidifier and purifier in one unit

The Defensor PH15 combines powerful humidification and effective air purification in a single mobile unit. Its integrated filters reduce airborne particles while the evaporative system adds clean moisture. This dual-function design improves indoor air quality and comfort with minimal effort and no extra equipment. High-quality filters are available for summer or winter operation.

Tank or fixed water supply available

The humidifier has a 20-liter water tank and is equipped with wheels for effortless movement and refilling. This configuration ensures reliable humidification tailored to the requirements of any facility. Optionally, the Defensor PH15 can also be connected to a fixed water supply.

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Spare parts

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Frequently asked questions

The device can both humidify and purify the air - how does it work?

The Defensor PH15 offers both functions. On the one hand, it works as an evaporative humidifier (in winter mode) with a maximum humidification capacity of up to approximately 1.7 l/h.

On the other hand, by changing the filter in summer, it can be used purely as an air purifier. Humidification is then deactivated and the air is purified instead (e.g., against fine dust, pollen, odors).

What room size or volume is the PH15 suitable for?

How much power does it consume and how loud is the device when in operation?

The PH15 requires a maximum of 72 W of power during operation.

The sound pressure level varies depending on the fan speed; typical values are: approx. 33 dB(A) at the lowest speed to 50 dB(A) at the highest speed.

This makes the device comparatively quiet and suitable for museums, exhibition rooms, or work areas, provided it is not operated at maximum speed.

Tip: For rooms with high noise sensitivity, the lower speed is recommended—sufficient humidification is often achieved even at this speed.

What maintenance and hygiene measures are necessary for the device?

The following points are important to ensure that the Defensor PH15 works hygienically and reliably:

Regular filter replacement (e.g., coarse dust or Quattro filter) and, if necessary, replacement of the evaporator mat.

When operating in humidification mode, care must be taken to ensure that the water does not stand or become contaminated — the “silver ionization” option helps to reduce germ growth in the water.

Location and connection selection: The device should be placed on a level, well-ventilated surface, not directly against exterior walls or in narrow niches.

For versions with a tank: The tank must be refilled and checked regularly. For direct water connection (PH15A), use aquastop and leak monitoring if necessary.

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Projects and references

National Museum of China

Boasting a total area of 195,000 m2, the National Museum in Beijing is the largest museum building in the world. It attracts 7.5 million visitors every year. Located directly on Tienanmen Square and in close proximity to the Forbidden City, it houses over 1 million exhibits, including paintings, art objects as well as historical artefacts from the Paleolithic era and the empires to the industrialization era and from the recent past. The architecture of the building shows clear references to traditional Chinese buildings. For example, the exposed entablature, the staggered roof typology, and even the large perforated bronze doors echo the design of the historic models. Mobile Condair humidifiers ensure a healthy room climate and optimum room humidity for conservation.

Kyoto National Museum

Condair humidifiers have been installed at the Kyoto National Museum to protect important national artefacts and artworks. The humidifiers also support with maintaining a comfortable, healthy environment for guests and employees at the historical facility.

The Hokusai-kan Museum

The Hokusai-kan Museum is home to some of Japan's most famous paintings, prints and books. Of note, the Museum houses several wooden festival floats. To maintain and protect these historical items, Condair humidifiers are used to ensure an optimal environment for these artefacts.

Tokyo Metropolitan Theatre

The Tokyo Metropolitan Theatre is home to several performance halls, rehearsal spaces and galleries. To maintain an optimal environment for theatre performances, Condair humidification products have been installed.

Tokyo National Museum

The Tokyo National Museum collects, houses, and displays a comprehensive collection of art works and antiquities from Japan as well as other Asian countries. The museum also conducts research and investigations concerning its collection of books, rubbings, and photographs, related to fine art, and makes these items available to scholars. Condair humidifiers not only protect the collections, but also help to provide an optimal environment for guests and employees at the Museum.

Stadhuis Maastricht

Astrakhan Art Gallery

Astrakhan Art Gallery is the first Astrakhan art museum based by P.M. Dogadin who has donated his collection of paintings to his native town in 1918.

Museum of Moscow

The Museum of History of Moscow is one of the oldest museums of the city. Its collection was established on the initiative of Russian scientific community in 1896.

Schusev State Museum of Architecture

The Shchusev State Museum of Architecture is a national museum of Russian Architecture located in Moscow the capital of Russia and also a research centre to study and promote the architectural and urban heritage

Ashmolean Museum

The Ashmolean is the University of Oxford's museum of art and archaeology, founded in 1683. Its world famous collections range from Egyptian mummies to contemporary art, telling human stories across cultures and across time.The Ashmolean was Britain's first public museum. Its first building was erected in 1678&ndash1683 to house the cabinet of curiosities that Elias Ashmole gave to the University of Oxford in 1677. It is also the world's second university museum, after the establishment of the Kunstmuseum Basel in 1661 by the University of Basel.Condair mobile humidifiers are helping maintain the ideal internal humidity for the preservation of the exhibits on display andin storage.

Mayfield School

Mayfield School is an independent Catholic boarding and day school for girls aged 11 to 18. It is in the village of Mayfield in East Sussex.Condair PH15 mobile humidifiers are maintaining an ideal humidity in the music department to help keep the pianos and other musical instruments in perfect condition.

Momart

Momart specialise in the storage, transportation, and installation of works of art. A major proportion of their business is maintaining often delicate artworks in a secure, climate-controlled environment. The company maintains specialist warehouse facilities adapted for this task.Condair mobile humidifiers are helping maintain the ideal humidity for the preservation of fine art and antiques in Momart's east london storage facility.

Get free expert advice

If you want to explore your options for humidity control, Condair's expert sales engineers will visit your site, review your project and talk you through their recommendations.

Alternatively, if you would prefer a call or online meeting, our team are always happy to discuss possible solutions and offer free technical advice.