Clean air is an essential part of life. But do you know whether the air around us is clean or polluted? Let’s explore this in more detail in this article with Tan Thanh.
1. Standards for measuring clean air
Standards for surrounding clean air
The surrounding clean air standard is an important set of regulations to ensure that air quality meets public health requirements. According to QCVN 05: 2013/BTNMT, this standard specifies limits for basic air parameters, including: SO2, CO, NO2, O3, total suspended dust, PM10 dust, PM2.5 dust, and lead. QCVN 05: 2013/BTNMT is used to assess the quality of surrounding air, but it does not apply to indoor air or industrial facilities.
Parameter | 1-Hour Average | 8-Hour Average | 24-Hour Average | Annual Average |
PM2.5 | – | – | 50 µg/m³ | 25 µg/m³ |
PM10 | – | – | 150 µg/m³ | 50 µg/m³ |
NO₂ | 200 µg/m³ | – | 100 µg/m³ | 40 µg/m³ |
SO₂ | 350 µg/m³ | – | 125 µg/m³ | 50 µg/m³ |
O₃ | 200 µg/m³ | 120 µg/m³ | – | – |
CO | 30 mg/m³ | 10 mg/m³ | – | – |
Note:
- µg/m³: microgram per cubic meter
- mg/m³: milligram per cubic meter
- (-): not regulated
- PM2.5: Fine particles with an aerodynamic diameter ≤ 2.5 µm
- PM10: Fine particles with an aerodynamic diameter ≤ 10 µm
- NO₂: Nitrogen dioxide
- SO₂: Sulfur dioxide
- O₃: Ozone
- CO: Carbon monoxide
Clean room dust standards
Below is the dust level standard for clean rooms, including key metrics and acceptable limits for various cleanliness levels:
Clean Room Level | Particle Size | Allowable Particle Count (particles/m³) | Application |
ISO 1 | ≥ 0.1 µm | ≤ 10 particles/m³ | Clean rooms in medical industries, semiconductor production, and high-cleanliness environments. |
ISO 2 | ≥ 0.1 µm | ≤ 100 particles/m³ | Clean rooms for scientific research, high-tech equipment production. |
ISO 3 | ≥ 0.1 µm | ≤ 1,000 particles/m³ | Clean rooms for electronic components and pharmaceuticals. |
ISO 4 | ≥ 0.1 µm | ≤ 10,000 particles/m³ | Clean rooms for pharmaceutical production, medical devices, and industries requiring low dust levels. |
ISO 5 | ≥ 0.5 µm | ≤ 100,000 particles/m³ | Clean rooms for electronic components, pharmaceutical, and medical device assembly. |
ISO 6 | ≥ 0.5 µm | ≤ 1,000,000 particles/m³ | Clean rooms for mechanical equipment, automotive, and other industrial applications. |
ISO 7 | ≥ 0.5 µm | ≤ 10,000,000 particles/m³ | Clean rooms for consumer goods, food production, and light dust protection processes. |
ISO 8 | ≥ 0.5 µm | ≤ 35,000,000 particles/m³ | Clean rooms in the food processing industry, packaging production. |
These levels are determined based on ISO 14644-1 standards, widely applied in industries requiring clean environments and minimal dust presence. Clean rooms are classified from ISO 1 to ISO 9, with dust standards decreasing as the cleanliness level increases.
2. Impacts of clean air
Clean air plays a vital role in maintaining human health and protecting the environment. Recent studies from the World Health Organization (WHO) show that good air quality can reduce the risk of respiratory and cardiovascular diseases by 76%.
Positive impacts of clean air on health
Health clean air provides numerous health benefits:
- Improved lung and respiratory function: Helps the lungs operate more effectively, increasing the ability to absorb oxygen and expel CO2.
- Boosted immune system: Reduces the risk of respiratory infections and illnesses.
- Enhanced sleep quality: Clean air helps the brain receive sufficient oxygen, improving deep sleep.
- Increased life expectancy: According to WHO, clean air can add 2-3 years to average life expectancy.


Impact of clean air on work and study productivity
Clean air creates an optimal environment for mental activity:
- Increases focus and creativity.
- Reduces fatigue and headaches in the workplace.
- Enhances student learning efficiency.
- Improves office work productivity.


Environmental and ecosystem impact
Clean air is crucial for environmental protection:
- Protects plants and biodiversity.
- Reduces acid rain phenomena.
- Mitigates the greenhouse effect and climate change.
- Maintains natural ecological balance.
Economic benefits of clean air
Investing in improving air quality brings significant economic value:
- Reduces medical and treatment costs.
- Increases social labor productivity.
- Boosts tourism and service development.
- Promotes the growth of green technologies.
3. Ways to improve clean air
Here are effective ways to improve air quality, providing a clean and sustainable living space:
Plant more trees
Trees act as the “green lungs” of the Earth, absorbing CO2 and providing oxygen. They also filter fine dust and pollutants, significantly reducing the impact of harmful gases. You can:
- Plant trees in your garden, balcony, or on rooftops.
- Participate in reforestation campaigns and protect natural vegetation.
Reduce personal vehicle usage
Vehicle emissions are one of the primary causes of air pollution. To improve air quality, you should:
- Use public transportation such as buses and subways.
- Ride bicycles or walk for short distances.
- Switch to electric vehicles or those powered by clean energy.
Use renewable energy
Transitioning to renewable energy not only reduces CO2 emissions but also saves long-term costs. Instead of relying on fossil fuels, opt for clean energy sources such as:
- Install solar panels.
- Use wind energy and geothermal energy.
Control industrial waste
Businesses and factories need to:
- Use advanced dust and emission filtration technologies to reduce harmful emissions.
- Follow government regulations on waste and emissions handling.
- Recycle materials to reduce emissions from production processes.
Reduce the use of air-polluting products indoors:
- Use paints, cleaners, and chemicals with low volatile organic compounds (VOCs).
- Install dust filters to remove fine dust and allergens.
- Maintain ventilation by opening windows to allow air circulation.


4. Tan Thanh – The provider of clean air solutions for factories
If your business is looking for effective, authentic, and reliable dust and smoke treatment solutions, Tan Thanh Industrial Filter Company is the perfect choice. Established in 2010, Tan Thanh has clearly focused on producing products like dust collection valves, dust filter bags, and filter bag frames (dust filters) to serve industrial dust recovery systems. With a dedicated and experienced team, we confidently provide the best products for customers.
Why Choose Tan Thanh?
- Over 14 years of experience in the industry: Tan Thanh takes pride in over a decade of consulting, installation, and maintenance of high-performance dust filtration systems, ensuring optimal efficiency and complete customer satisfaction.
- Trustworthy partnerships with top brands: As a reliable manufacturer and distributor, Tan Thanh collaborates with leading brands in the industry to provide customers with top-quality products.
- Commitment to offering only genuine products: We say “no” to counterfeit products, low-quality components, or unverified sources, ensuring peace of mind for customers choosing Tan Thanh.
- Professional services: Tan Thanh provides on-time delivery, accurate technical installation, and after-sales services. Our dedicated and experienced staff is always ready to assist, ensuring a seamless shopping experience.


Tan Thanh is constantly striving to provide satisfaction and build long-term trust with customers nationwide. Let Tan Thanh accompany you in improving the clean air quality in your work environment and enhancing production efficiency.
- Hotline: 0917 531 007 – 0901 85 8686
- Email: kelvin@tatafilter.com
- Address: 50 Road No.1 Cu Xa Dien Luc, Truong Tho Ward, Thu Duc City, Ho Chi Minh City, Vietnam.
