Ozone Service Kills Legionella in Hotel Central AC Systems WHD
Last updated: 31 May 2026 | 91 Views |
Ozone Service Kills Legionella in Hotel Central AC Systems — WHD
A 5-star, 250-room Sukhumvit hotel detected Legionella in cooling towers and central AC: 8 guests contracted Legionnaires' disease, 1 fatality. Hotel closed 3 weeks for cleaning and re-audit. Legionella in hotels and hospitals is a serious global issue. Ozone kills Legionella at 99.99% in 30-60 minutes. WHD is Thailand's only Hospital-Grade ozone service at 10,000 mg/h.
Legionella — Severe Danger
Legionella pneumophila causes Legionnaires' disease — severe pneumonia with 5-30% mortality in high-risk groups (elderly, smokers, immunocompromised). Symptoms: high fever, cough, shortness of breath, muscle pain. Incubation 2-10 days.
Spreads via inhaled contaminated aerosols from cooling towers, showers, decorative fountains, cooling systems.
US CDC reports Legionnaires' disease has risen 9-fold over 20 years; outbreaks plague hotels, hospitals, spas, malls.
Why Conventional Methods Fall Short
Cooling-tower chlorine wash requires shutting the entire hotel AC — millions in cost. Legionella biofilm on internal piping resists chlorine. Ozone penetrates biofilm and kills Legionella in cooling towers and HVAC ducting throughout.
WHD Thailand Only Hospital-Grade Ozone
Master Ozone Generator 10,000 mg/h kills Legionella and biofilm at 99.99% in 30-60 minutes. ISO 14644 / JCI / WHO certificates for hotels and hospitals.
Team trained to WHO + EPA + Thailand DMS.
10 Reasons Hotels/Hospitals Choose WHD
1) Kills Legionella + Biofilm 99.99%
SAL 10^-6 throughout HVAC.
2) Hospital-Grade Only in Thailand
10,000 mg/h through cooling towers.
3) Penetrates Biofilm
Oxidation destroys biofilm chlorine cannot.
4) No Equipment Damage
Copper, steel, stainless steel pipes safe.
5) ISO/JCI Certificate
For Department of Health and insurance audits.
6) Ozone Meter Verification
WHO/EPA standards.
7) Internationally Trained Team
WHO + EPA + DMS.
8) Minimal Downtime
Reopens in 4-6 hours.
9) Complete Coverage
Cooling towers + AC + bathrooms + fountains.
10) 24-Hour Emergency Response
When Legionella outbreak detected.
Chief Engineer Testimonial
"Legionella in cooling towers: 8 guests sick, 1 died. Hotel name damaged, closed 3 weeks. WHD ozone-treated full AC system over 6 hours; ISO certificate; Department of Health audit passed; reopened safely." — Chief Engineer, 5-Star Sukhumvit Hotel
Book WHD Ozone Service Today
Legionella sterilization in cooling towers, hotels, hospitals, spas nationwide. 24-hour emergency response.
Phone 065-556-6294
LINE: @whd268
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