Pressure Respirator

Various types of outdoor lighting products common problems:

Potential problems: Outdoor Lamps’ shell frequently suffer from temperature and pressure changes .

Constantly change of temperature, dust, dirt and moisture greatly affect the lamp shells of outdoor lightings. For example, the rainfall will lead the lamp shell to a sharp temperature drop, the sharp decrease of temperature will generated 150mbar and even greater vacuum in the shell, causing air and moisture through the seal gap to enter inside of the enclosure. Then moisture will be condensed into water droplets on the inner wall (condensation), which would seriously affect the product performance and shorten the service life.

In addition, the constant change of temperature makes the seal also changes with the stress, at last, it will lead invalidation of seal---This means that not only moisture, including water and various liquids will eventually enter into the shell casing through the gaps.(Pic1)

Solutions: Continuous ventilation to keep the pressure balance inside and outside of the enclosure.

After installed the pressure respirator in the shell of outdoor lightings, can effectively protect the enclosure from negative impact caused by pressure difference due to temperature changes.The pressure respirator can quickly balance the pressure inside and outside the shell when the ambient temperature and pressure changes.

Large ventilation volume, fine porous structure pressure respirator can prevent leakage through balance the pressure internal casing and environment, thereby reducing the stress on seal further ,and reduce the frost to a minimum.

In addition, the hydrophobic structure of the filter can prevent water, dust and even bacteria penetrate into enclosure, but also can act as a strong barrier against the impact of severe weather conditions (rain, snow, high winds, etc.),and to ensure the water vapor infiltration send out in time.