Last updated: 28 May 2026 | 29 Views |
Comparing the 3 most popular disinfection methods — effectiveness, time, cost, real results
A 4-classroom school with 80 children tested 3 methods. Month 1 — staff wiping (28 RSV cases). Month 2 — bottle spray (12 HFMD cases). Month 3 — switched to AIROFOG U260 + Chemgene every 7 days (only 2 unrelated mild fevers). Parents thrilled, teachers no longer stressed. The sprayer + chemical cost was 1/3 of medical bills they avoided.
| Feature | Wiping | Spray Bottle | ULV AIROFOG U260 |
|---|---|---|---|
| Kills airborne germs | No | Barely | Yes — 99.99% |
| Reaches corners | No | Partial | 5-50 micron mist reaches all |
| Time / 50 sqm | 90 min | 30 min | 8-10 min |
| Chemical usage | High | Medium | Lowest (1/10) |
| Residual action | 0 once dry | 2-3 days | 14 days (with Chemgene) |
| Cost per sqm | High (labor+chemical) | Medium | Lowest |
| Skin safety | Chemical-dependent | Strong odor | Medical Grade |
Pros: Cheap to start, immediate, visibly clean
Limitations:
Pros: Wider coverage than wiping, faster, less chemical
Limitations:
Pros — addresses every prior limitation:
Cons: Sprayer investment ~30,000 THB (5-10 year lifespan); 30-min learning curve; needs medical-grade chemical
| Situation | Recommended |
|---|---|
| Daily cleaning — floors, tables | Wiping (just dust removal) |
| Spot stains, specific spots | Spray bottle |
| Serious whole-room disinfection | ULV AIROFOG U260 |
| After illness/outbreak | ULV AIROFOG U260 |
| School, office, factory | ULV AIROFOG U260 |
| Hotel/Airbnb room reset | ULV AIROFOG U260 |
"Tested 3 methods in our school — ULV won outright. No simultaneous illnesses, teachers spend 80% less time" — Principal, Bang Yai
"8-branch restaurant chain — spray bottles wasted so much. Switched to U260 — 60% monthly savings" — Restaurant owner
Call 065-556-6294 | LINE @whd268
Q: Does ULV wet the floor?
A: No — micron-sized droplets evaporate before settling
Q: Can I use spray-bottle chemical in a ULV?
A: If it's high purity, non-sedimenting. Medical Grade like Chemgene gives best results
Q: Is ULV loud?
A: AIROFOG U260 ~62 dB — conversation level, daytime-friendly
Q: Training needed?
A: 30 minutes to learn — WHD provides operator training
Wiping is for "cleaning" — but real disinfection requires ULV. Spray bottles work for spot use but don't cover the way ULV does. AIROFOG U260 + Chemgene HLD4H is the combo hospitals, airports, and food factories worldwide trust.
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