Five key considerations for Choosing the right Cleanroom air shower

The air shower, as a key device for personal purification before personnel or materials enter the clean room, is hailed as the "gatekeeper" of the clean room. It effectively removes dust particles adhering to the surface of the human body or objects through high-speed and clean air flow, and is an indispensable part of maintaining the environmental grade of the clean area. However, in the face of a wide variety of air shower products on the market, how to choose the one that best suits their own needs is a difficult problem for many users.

This article will systematically sort out the key points for choosing an air shower room for you

The requirements for cleanliness vary greatly in different application scenarios. Your industry determines what level of air shower you need.

High-demand fields (such as medicine, medical devices, sterile laboratories, and precision optics) : Usually, air shower rooms with stronger air shower effects, better sealing performance, and superior material corrosion resistance are required. It is recommended to choose models with a wind speed of over 23m/s, and the materials are mostly 304 or 316 stainless steel to ensure dust-free, sterile and easy to clean and disinfect.

General fields (such as electronic assembly, food and beverage, packaging industry) : There are requirements for cleanliness, but it is not absolutely sterile. Standard models with wind speeds ranging from 20 to 25m/s are available for selection. Both stainless steel and high-quality baked paint steel plates can meet the requirements.

Special fields (such as lithium batteries, photovoltaics, and chemicals) : Special functions such as explosion-proof and anti-static may need to be considered.

This is the core factor determining the size and configuration of the air shower room.

Single-person dual-blow/single-person triple-blow: Suitable for places with low foot traffic and narrow passageways, it is the most economical configuration.

Double-person double-blow/multi-person air shower: Suitable for scenarios where people pass through in large numbers during rush hours, it can significantly improve passage efficiency and avoid queuing. The internal dimensions need to be determined based on the maximum number of people passing through at one time.

Air shower passage: When the flow of people is very large, a long strip-shaped passage can be set up to achieve continuous air shower.

Customized dimensions: It is also necessary to consider the limitations of installation space (such as door opening size, floor height, etc.) and whether there are special objects (such as shelves, trolleys) that need to pass through.

Air shower air velocity: According to national standards (such as GB/T 14294), the air velocity at the outlet of the air shower nozzle should not be lower than 20m/s. It is recommended to choose 23-25m/s or above. A higher air velocity means better dust removal efficiency.

Filter efficiency: The high-efficiency air filter (HEPA) is the "heart" of the air shower, and its filtration efficiency directly determines the cleanliness of the air blown out. HEPA filters with a filtration efficiency of no less than 99.99% for particles ≥0.3μm (i.e., H14 grade) should be selected.

Noise level: A high-quality air shower room, while ensuring high air velocity, will control noise through measures such as fan vibration reduction and box sound insulation, usually below 65 decibels, providing a relatively comfortable environment for personnel.

All stainless steel (304/316) : Sturdy and durable, anti-corrosion and anti-rust, easy to clean, suitable for workshops with high humidity, high cleanliness requirements and corrosive environments.

Cold-rolled steel plate baking varnish: High cost-effectiveness, the appearance color can be selected to match the workshop decoration, suitable for places with not extremely strict environmental requirements.

Door types: Common ones include manual doors and automatic doors (sliding doors/rapid rolling shutter doors). Automatic doors can prevent hand contact and have a high degree of automation, but they also have higher costs and maintenance requirements.

Interlock function: Must be equipped! It ensures that the front and rear doors cannot open simultaneously, creating an airlock effect to prevent unclean air from directly flowing into the clean area.

Control system: Modern air showers mostly adopt microprocessor intelligent control, which can set the air shower time (usually adjustable from 10 to 99 seconds), display the operating status, and issue an alarm for filter blockage, etc. The operation is intuitive and convenient.

Intelligent voice prompt: Guide personnel to complete the air shower process.

Infrared sensor automatic air shower: It starts automatically after personnel enter, without the need for manual buttons, making it more hygienic and intelligent.

Self-cleaning function: When not in use, it can run automatically at regular intervals to keep the box clean.

Modular design: Facilitates later transportation, installation and maintenance.