Good price and quality air tight door is often used in the medical industry and places with high air tightness requirements. How can it achieve high air tightness? 
Good price and quality air tight door products are designed to avoid direct convection between the partitioned space and the external indoor air, resulting in some pressure difference in the partitioned space, that is, the gas pressure in the partitioned space is smaller than the external gas pressure. Therefore, the external pressure of indoor air acts on the door to firmly close the door, so as to ensure the excellent tightness and impermeability of the partitioned space, Thus, the pollution of the isolated space to the outside is reduced.

Good price and quality air tight door products generally adopt external and embedded installation. This installation method can be kept in the same plane with the wall. In addition to beauty, it is also to make the air tight door open and close smoothly and meet the special requirements of airtightness, sound insulation and so on. Secondly, silica gel seals will be installed on all sides of the door leaf to fill the gap between the door leaf and the door frame, so as to prevent the entry of dust and bacteria and reduce air leakage.

When the door leaf of the good price and quality air tight door is closed, the door leaf is offset to the door frame and the ground, and the sealing strips on the four sides of the door leaf are completely bonded with the door frame and the ground to ensure the tightness. When the door leaf is opened, the sealing strip on the door leaf and four sides is loosened from the ground and door frame to avoid the contact between the sealing strip and the ground and door frame, which greatly reduces the wear degree of the sealing strip and improves the service life.