Indoor air often appears clean but can be filled with hidden pollutants. From dust and allergens to chemical fumes and mold spores, these contaminants can silently affect human health. Prolonged exposure to indoor air pollution has been linked to respiratory issues, fatigue, allergies, and various long-term health concerns. In an era where time spent indoors continues to increase, improving air quality inside living and working spaces is more important than ever.
An effective indoor air purifier can be the key to maintaining a cleaner and healthier environment. However, not all purifiers offer the same level of protection. Choosing a product that meets national safety and performance standards is essential. This is where BIS certification, BIS registration, and adherence to IS 17531:2021 become crucial.

--------------Blog Contact Form-------------

Understanding the Problem: Hidden Indoor Air Pollution

Unlike outdoor air, indoor air becomes stagnant and traps pollutants. Ventilation is limited, and air movement is restricted, allowing particles to build up over time. Common indoor pollutants include:

• Dust and pet dander
• Mold spores and pollen
• Volatile Organic Compounds (VOCs) from paints and furniture
• Smoke and cooking fumes
• Airborne bacteria and viruses

Exposure to these pollutants may lead to asthma, bronchitis, sinus irritation, headaches, eye discomfort, and weakened immunity. Infants, the elderly, and individuals with pre-existing conditions are at higher risk.
Standard cleaning practices such as sweeping, mopping, or vacuuming may not effectively remove these microscopic pollutants. Therefore, a certified indoor air purifier is an essential tool in ensuring a healthier living space.

Why Certified Air Purifiers Matter?

Air purifiers function by pulling in indoor air and filtering out harmful particles. However, the effectiveness of a purifier depends on the quality of its filtration system and its adherence to safety standards.
Products that carry a BIS certificate assure compliance with strict Indian safety and performance benchmarks. These devices undergo rigorous testing under the Bureau of Indian Standards (BIS), ensuring their reliability and efficiency.
BIS certification is not just a mark, it represents trust, quality, and safety in line with India's regulatory framework. Choosing BIS certified appliances helps in:

• Ensuring product safety
• Preventing fire or electric hazards
• Verifying effectiveness in particle removal
• Maintaining long-term operational durability
• Contributing to improved indoor air quality

IS 17531:2021 – The Indian Standard for Air Purifiers

IS 17531:2021 is the national standard for indoor air purifiers in India. Developed by BIS in collaboration with experts, industry professionals, research bodies, and regulators, this standard sets performance benchmarks for:
Filtration efficiency
CADR (Clean Air Delivery Rate)
Noise levels
Safety compliance
Power consumption
This standard ensures that air purifiers operate efficiently and safely in Indian conditions. Consumers and institutions looking for BIS certification or BIS registration must ensure compliance with IS 17531:2021.

Key Features to Consider Before Purchasing an Indoor Air Purifier

Choosing the right air purifier requires evaluating a few essential features, especially when aiming for long-term benefits. Here are the most important factors:

1. HEPA Filtration System

High-Efficiency Particulate Air (HEPA) filters can trap 99.97% of airborne particles, including dust, pollen, and microscopic allergens.

2. Activated Carbon Filters

Essential for removing odors, chemical fumes, tobacco smoke, and VOCs.

3. CADR Rating

A higher Clean Air Delivery Rate indicates faster air purification. It also confirms the purifier’s capacity to clean a specified room size efficiently.

4. Room Size Compatibility

Select a unit that suits the square footage of the intended area. Overuse in larger spaces reduces effectiveness.

5. Noise Level

Low-noise units are ideal for bedrooms, hospitals, or workplaces.

6. Power Efficiency

Energy-efficient models ensure minimal impact on electricity bills, making them suitable for continuous operation.

7. Smart Features

Automatic sensors, remote control, timers, and digital displays enhance user convenience.

8. Safety and Compliance

Always opt for purifiers that carry the BIS Standard Mark and are IS 17531:2021 compliant. These devices meet national quality and safety standards.

Role of BIS Certification in Product Safety

BIS certification adds a layer of assurance to consumer products. The BIS certificate confirms that an air purifier has undergone testing in accredited laboratories and conforms to Indian standards. Manufacturers with BIS registration gain legal approval to sell the certified product with the ISI mark.

Key benefits of choosing BIS certified air purifiers

• Quality assurance through periodic testing
• Certified filters for effective pollutant removal
• Safe electrical components
• Approved manufacturing practices
• Greater consumer trust and product transparency
• As per Indian law, air purifiers under specific categories must have mandatory BIS registration to be sold in the Indian market.

Importance of BIS Registration for Manufacturers

Manufacturers of air purifiers must obtain BIS registration under the Compulsory Registration Scheme (CRS) to enter the Indian market legally. This process involves:

• Product testing at BIS-recognized labs
• Factory inspections
• Document verification
• Product listing on BIS portal

Only after successful BIS registration can manufacturers use the ISI mark, showcasing compliance with Indian standards. This step also strengthens market credibility and consumer trust.

Conclusion

Indoor air quality plays a major role in overall health and comfort. While pollutants are not always visible, their effects can be harmful and lasting. A certified indoor air purifier can significantly reduce exposure to dust, allergens, and harmful gases.
Selecting a purifier that carries the BIS Standard Mark ensures that it complies with the national safety and performance standards under IS 17531:2021. This provides assurance of safety, energy efficiency, and filtration effectiveness.
Always prioritize certified products backed by BIS certification and BIS registration. Doing so supports a cleaner, healthier environment and promotes informed purchasing decisions.