Product
Indoor air solutions
The AIRSIGNATURE Collection — entrance air shower with purification and sterilization — is made to order for your space.
View collection →HOMEAbout
About
Company
Indoor air management that starts at the entrance — meet AIR SIGNATURE.
Company
Setting a standard
for the air you can’t see
AIR SIGNATURE is an indoor air solutions company. Built around the entrance air shower, we provide one integrated system for blocking outdoor pollutants, measuring indoor air quality in real time and maintaining equipment on schedule.
We have supplied spaces with strict air standards — government buildings, childcare and medical facilities — and in 2026 ‘AI Net-Zero Air Purity’ was designated an Innovation Product by Korea’s Public Procurement Service. We don’t define clean air by equipment specs alone. Proving a space’s air quality with the measurement data and care records accumulated after installation — that is how AIR SIGNATURE defines indoor air management.
- Vision
- A trusted standard
for the air in every space - Mission
- One system responsible for
the entire indoor-air process
- Company
- AIR SIGNATURE Co., Ltd.
- CEO
- Yujeong Na
- Founded
- 2020
- Business areas
- Indoor air solutions · maintenance service · air-quality data analytics
- Certifications
- Women-owned · Venture Company
- Innovation Product
- PPS Innovation Product (2026)
Four steps of indoor air management
We don’t stop at supplying equipment — we stay with you through operation.
Pure Air, Indoors
Forest-fresh air
as the indoor standard
01 Protect
Blocking ingress
An air shower at the moment of entry
Air shower · upper & lower capture
removes contaminants and captures them instantly02 Measure
Continuous measurement
Entry and indoor air quality,
PM2.5 · CO₂ · VOC · temp/humidity
measured and logged 24/703 Care
Regular care
Care specialists visit
Scheduled visits every 3 months
to replace filters and consumables04 Report
Reporting
Air-quality history and power use,
Periodic reports · ESG reporting
delivered as reports and ESG data
Business Area
Three businesses,
one connected system
Beyond supplying products, we take responsibility for air quality after installation — through care and data.
Service
Maintenance service
Care specialists visit regularly for inspection, cleaning and filter and consumable replacement, and keep a service record.
Care service →Data
Air-quality data analytics
Device measurements are managed on one platform and delivered as periodic reports and ESG materials.
View platform →Indoor Air Standards
Indoor-air standards
keep rising
The more a facility serves children, seniors or patients, the stricter the legal standards. It is no longer enough to install equipment — compliance must be proven with data.
Indoor air quality standards
| Item | Sensitive-group facilities | General facilities |
|---|---|---|
| PM2.5 | 35㎍/㎥ | 50 ㎍/㎥ |
| PM10 | 75㎍/㎥ | 100 ㎍/㎥ |
| CO₂ | 1,000ppm | 1,000 ppm |
Maintenance standards (max.) under Korea’s Indoor Air Quality Control Act. Sensitive-group facilities include daycare centers, medical institutions, elderly care facilities and postnatal care centers.
80%+
Time spent indoors
We breathe indoor air for most of the day
24h
Continuous measurement and logging
Compliance proven with data
3months
Filter replacement cycle
Scheduled care maintains capture performance
Beyond the Standard
Legal standards are only the minimum
The WHO recommends far stricter PM2.5 levels than Korea’s indoor standards. Real-time data shows where your space stands.
PM2.5 standards compared. Sources: WHO Air Quality Guidelines (2021); Enforcement Rules of Korea’s Indoor Air Quality Control Act.
Where It Applies
Multi-use facilities under
indoor-air regulation
AIR SIGNATURE is designed for the entrances of facilities subject to air-quality standards.
Daycare centersMedical institutionsElderly care facilitiesPostnatal care centersLibrariesMuseums · galleriesUnderground stationsPassenger terminalsLarge retail storesIndoor sports facilitiesIndoor playgroundsOffice buildings