Pulmonologist says patient landed in emergency after mixing 2 toilet cleaners at home: ‘One wrong mix can permanently…’

A pulmonologist spoke about a case wherein a patient collapsed after mixing red and blue Harpic cleaners, producing harmful chlorine gas.
We all use bleach or acid-based cleaning agents to sanitise our bathrooms. But did you know one simple mistake while using them could damage your lungs and harm your health severely?
According to Dr Ankit Bhatia, a pulmonologist with expertise in respiratory disorders and critical care, one of his patients landed in the emergency department because she made the mistake of mixing cleaning agents while cleaning the bathroom: She mixed red Harpic with blue Harpic.
Can mixing cleaners damage your lungs?
Dr Bhatia posted the Instagram Reel on December 8 with the caption, “A patient landed in our emergency today after mixing two toilet cleaners at home. One wrong mix can permanently injure your lungs.”
According to the pulmonologist, the shocking incident happened when the patient was cleaning her bathroom. The moment she mixed the two cleaners, red Harpic and blue Harpic, toxic fumes filled the space. The fumes produced chlorine gas, which triggered Reactive Airway Dysfunction Syndrome (RADS) — a severe irritation and spasm of the airways.
Beware if you have asthma or have allergies
“Within minutes, she became breathless and collapsed, and was brought to the emergency. When you mix toilet cleaner, acid, and bleach, toxic gases are released,” Dr Bhatia shared.
According to Dr Bhatia, these gases can damage your lungs and airways, especially if you have allergies or asthma
He cautioned that while you are cleaning the bathroom with certain reactive agents, there are three things one should always remember:
1. Never mix Harpic with bleach, acids, or other cleaners.
2. Use only ONE product at a time.
3. Always ventilate your washroom.
According to the Centres for Disease Control and Prevention, chlorine gas reacts with the water to form hydrochloric and hypochlorous acids, which may cause a variety of symptoms as a function of the severity of exposure, including inflammation, tearing, respiratory tract irritation, mild mucous membrane irritation, and nausea.
Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.
This report is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.
ABOUT THE AUTHORKrishna Pallavi PriyaKrishna Priya Pallavi is a journalist with over 9 years of experience, covering health, fashion, pop culture, travel, wellness, entertainment, festivals, mental health, art, decor, fitness, and sex and relationships. She is an alumna of the Indian Institute of Mass Communication (IIMC), Dhenkanal, and holds an undergraduate degree in Journalism and Mass Communication from Guru Gobind Singh Indraprastha University, Delhi. Her strong academic foundation informs her analytical and detail-oriented approach to storytelling, helping her uncover stories where none seem to exist. Before joining Hindustan Times, Pallavi worked with some of India’s leading media organisations. She spent close to three years at India Today, where she honed her newsroom skills and developed a sharp editorial sensibility. She also worked for over a year and a half at Vagabomb, ScoopWhoop’s feminist digital platform, where she explored stories through a gender-sensitive, socially aware lens. Pallavi has a deep interest in global fashion trends and international fashion seasons, and enjoys interviewing celebrities and tracking pop culture movements—interests that frequently translate into engaging, reader-friendly stories. Alongside lifestyle and entertainment, she has a keen eye for impactful health and wellness journalism, regularly interacting with doctors, designers, and digital content creators to bring nuance and credibility to her work. Born and raised in Haryana, Pallavi remains deeply connected to her ancestral roots in Odisha. Her ability to spot fresh angles brings curiosity and depth to stories she pursues. When not chasing deadlines, she enjoys spending time with her dog, planning her next vacation, reading, running new trails, and discovering new destinations.Read More
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