Air Shower NAS-201 is a cleanroom entry contamination control system that removes particulate matter from personnel and materials using high-velocity HEPA-filtered air before they enter controlled environments. It helps maintain cleanroom cleanliness and supports ISO 14644 and GMP compliance.
NAS-201 is a controlled entry system designed to reduce contamination risk in cleanrooms by removing dust and particles from personnel and materials before entry.
It acts as a protective barrier between non-controlled and controlled environments.
Air showers are critical because:
Humans and materials carry dust and particles into cleanrooms
Even microscopic contamination can affect product quality
Pharmaceutical and semiconductor industries require ultra-clean environments
Without air showers:
Product defects increase
Sterility is compromised
Regulatory compliance can fail
NAS-201 is used for:
Cleanroom entry decontamination
Personnel particle removal before gowning areas
Material transfer cleaning
Contamination control in sterile environments
Maintaining ISO cleanroom classification integrity
Interlocking doors prevent contamination leakage
HEPA-filtered air jets activate at high velocity
Air dislodges particles from surfaces
Contaminants are captured by filtration system
Cleaned subject exits into cleanroom
High-velocity air jets (20–30 m/s)
HEPA filtration system
Automated interlocking doors
Stainless steel cleanroom-grade construction
Adjustable cycle time (10–30 seconds)
Low turbulence airflow design
Pharmaceutical manufacturing cleanrooms
Semiconductor fabrication units
Biotechnology laboratories
Healthcare sterile environments
Food processing industries
Research & testing facilities
Cleanroom contamination must be minimized
Personnel or materials enter sterile environments
ISO 14644 compliance is required
GMP-controlled production is mandatory
High cleanliness standards are essential
ISO 14644 → Defines how clean a cleanroom must be in terms of particle limits
GMP → Ensures manufacturing is done in controlled, hygienic, and repeatable conditions
1.What is NAS-201 used for?
It removes particles from personnel and materials before cleanroom entry.
2.How does an air shower work?
It uses high-velocity HEPA-filtered air to dislodge and remove particles.
3.What is air velocity in NAS-201?
Typically 20–30 m/s.
4.What filtration is used?
HEPA filtration system.
5.Are air showers required in cleanrooms?
Yes, they are widely used for contamination control.
6.Can it remove microbes?
It mainly removes particles but may reduce microbial contamination indirectly.
Air Shower is a cleanroom contamination control system that uses high-velocity HEPA-filtered air to remove particulate matter from personnel and materials before entry into controlled environments. It ensures contamination control and supports ISO 14644 and GMP compliance across pharmaceutical, semiconductor, healthcare, and food industries.
