This Is What 90 Days Looks Like
BioShieldUV™ customers photographed their coils on installation day and again 90 days later. These are their results.
BioShieldUV™ Meets the Highest UV-C Standards
The Invisible Problem in Every HVAC System
- Every HVAC cycle pulls particulates, moisture, and biological matter across the evaporator coil
- Over time, this builds into dense biofilm embedded in fins and drain surfaces
- Growth continues silently between maintenance visits
- Restricted airflow as fouling thickens
- Reduced heat transfer efficiency
- Longer run cycles
- Higher energy consumption
- Declining air quality
UV-C light at 253.7 nm is absorbed by the DNA of microorganisms, preventing reproduction and eliminating biological matter at the surface level
A BioShieldUV™ system installed with line-of-sight to the coil irradiates the fin surface and drain pan continuously, 24 hours a day
Biological matter is eliminated before it can accumulate, rather than cleaned up after the fact
BioShieldUV helps you keep your UV-C clean every 10 months with automatic bulb replacement.
Learn MoreHere Is What Our Customers Are Saying
How the Promise Works
Unlike most guarantees, this one does not just live in fine print. BioShieldUV backs the Clean Coil Promise™ with two photographs taken 90 days apart.
Terms and conditions
A full refund of the product purchase price including original shipping, for customers who do not observe a visible improvement in coil condition between their Day 0 and Day 90 photographs. Applies to all BioShieldUV™ UV-C systems across the Classic and Magnetic Series.
Non-biological contamination such as dust, dirt, and mineral deposits. Systems not operated continuously at 24/7 during the 90-day window. Installations without direct line-of-sight to the coil face. Replacement bulbs and accessories. Purchases through unauthorised resellers. Commercial and industrial applications. Consequential damages and installation costs.
Product must be purchased from bioshielduv.com or our official Amazon store. Day 0 photograph must be submitted within 14 days of installation. Day 90 photograph must be submitted between Day 80 and Day 100. Refund request must be submitted within 100 days of original purchase.
Email support@bioshielduv.com with your order number and both photographs. Claims are reviewed within 5 business days and approved refunds are returned to the original payment method within 10 business days.
Your Coil Needs Protection Beyond Day 90
Every TruBlu™ bulb carries a 10-month warranty, and BioShieldUV makes sure that replacement arrives automatically before that window closes, with additional benefits.
- Free to join
- Replacement lamp delivered every 10 months
- 10% off on replacement bulbs
- Lifetime warranty coverage included
Disclaimers
This information is provided for educational purposes only. BioShieldUV Inc. is a manufacturer and does not provide installation services. Customers are responsible for hiring qualified, licensed HVAC professionals for all installation questions, guidance, and services.
BioShieldUV Inc. makes no pesticidal claims regarding our products. We do not claim our products disinfect air, kill specific pathogens, prevent disease, or provide any health benefits. The Clean Coil Promise covers observable physical improvements to HVAC system components — not health outcomes. Any references to research are from third-party sources and are for educational purposes only.
BioShieldUV systems are independently tested at 0.014 ppm ozone production, well below the EPA and CARB safety limit of 0.05 ppm.




