SAN-AIR V3R Air Handler Reactive Gel 500 g Refill is a replacement reactive gel pack designed to maintain ongoing microbial control within ducted HVAC systems, air handlers and large enclosed areas. As the gel slowly evaporates, it releases active compounds into the airflow to help reduce airborne mould spores, bacteria, fungi and odours - supporting fresher, healthier indoor air. This refill size is ideal for larger systems and spaces where continuous air quality enhancement is needed without harsh chemicals.
Features & Benefits:
Designed for Refills: Specifically manufactured as a replacement gel pack for SAN-AIR reactive gel housings or standalone placement.
Continuous Air Sanitisation: Gel slowly evaporates to diffuse active compounds throughout the airflow, helping minimise airborne microbes.
Improves Indoor Air Quality: Helps reduce musty and stale odours commonly associated with mould and poor ventilation.
Large Coverage: 500 g refill provides extended protection compared to smaller gel sizes.
Safe & Natural: Water-based reactive gel formulated with natural actives - non-toxic and non-corrosive.
Where to Use It:
Ducted HVAC Systems: Place in return air wells, plenums or near filters so conditioned air passes over the gel.
Air Handler Units: Excellent for larger residential or commercial HVAC systems requiring ongoing microbial control.
HVAC Ducting & Coils: Ideal for positioning near coils or within duct access points to improve airflow hygiene.
Large Indoor Areas: Office spaces, workshops, warehouses and rooms with sustained airflow from HVAC systems.
How to Use:
Unpack the Refill: Remove the gel pack from its packaging.
Activate Gel: Peel off the protective seal on the gel surface to begin slow evaporation.
Position in System: Place the gel in the reactive gel housing, return air well or near filters/coils where airflow will distribute active compounds.
Allow Continuous Action: The gel will gradually release actives into the airflow over several weeks.
Replace When Spent: Once the gel's output has diminished, replace with a fresh refill for ongoing protection.
I love it! This is really working! I bought few things, use it, and waited for a results. After two month's of use I can say it, it is improved situation with mould at my household. It's less visible mould on surfaces, it doesn't reappear as soon as before. In some places like showers I used it twice and results keeps much longer and cleaner! ( just one detail, I also clean with domestos after for cleaner results, less stains from mould).
Also my kids were less sick with cold & flu during this winter and air conditioner smells great. So highly recommended!
Store owner replied:
Thanks James, great review and appreciate the pics it certainly will help future customers to see that they can do a simple mould test for air, surfaces, and water very simply.Regards Russell
Not a twinge from my back since I started using it!
I have used the San-Air mould gone spray and now I’ve placed the gel in the rooms that were affected with mould. It’s early days yet, but I’m pretty sure they’re both doing an excellent job 🤞
We had a water leak in our bathroom and a mould problem. This spray, along with fixing the roof leak, seems to have fixed the problem. We sprayed once as per instructions, and then repeated the process a few days later. We have not seen any regrowth. We also bought the Mould Gone reactive gel to absorb any remaining spores. We are very happy with the results.
I purchased these bandages for my daughters as they often go for bush walks. They were appreciative of them and have added them to the snake bite kits.
I purchased two of these for my daughters who often go bush walking. They were very grateful for them.
What I appreciate is the quick delivery of items ordered and the professional help and customer service of Allstate Health care.
Only used it for three weeks now and there is little or no mould visible. Where in the past mould would be visible over that period of time,, so for so good
