After the winter, many families and offices moved out of the "death endurance" - the wettifier. However, reports of allergies due to humidifiers, acute bronchial asthma and increased allergies have been frequent in recent years. Can the humidifier work? How can it work? In response, dr. Chen lulu, deputy director of respiratory and critical diseases, nanjing drum hospital, warned that water purification, machine purification, air purification, clean habits and net substitution were the five key details。
Image source visual china
Why does "wetting" get sick
"the water tank, the concussion, the mist vents are always in a damp environment at a suitable temperature and can form a `biofilm' for 5-7 days." according to chen lulu, national and international literature shows that various pathogenic micro-organisms, such as carcinoma, palaea, legionella, and copper green sphinx, can be detected in this layer of biofilm。
More notably, even seemingly clean water breeds bacteria when used. Experiments have shown that four types of water that are injected with sterile water, cold water, pure water for finished products and clean water for current production are added to the wetting machine, and that the quality of water within 24 hours is achieved, but after 48 hours, all four types of water contain bacteria。
Many people prefer to add refined oil to the wetter, water, disinfection tablets, even vinegar, plaster root, which they think can “prevent fragrance”. Chen lulu reminds that these chemicals are subject to hypersonic convulsions of 1-3 mm small particles, with more than 90 per cent of them directly entering the lung bubble。
“slightly irritating the airways, causing cough, chest suffocation, and heavy causing chemical pneumonia, acute respiratory distress syndrome (ards). She noted, in particular, that the active ingredient “chlorodiphenol” in the disinfection liquid was highly irritated in the respiratory tract, and that prolonged or high inhalation could cause damage to the trachea and pulmonary osteoporosis, with serious consequences。
"at the height of the piped water, the ion forms the mud on the surface of the oscillation table and becomes the `hotbed' attached to the bacteria." chen lulu indicates that it is more dangerous to generate harmful by-products such as trihalethane and hypochloric acid after volatilization of residual chlorine in piped water, and that prolonged exposure to human inhalation may cause damage to respiratory mucous membranes and increase the risk of chronic bronchitis and lung cancer。
“not as wet as possible!” chen lulu emphasizes that when the relative humidity is more than 70 per cent in the room, the rate of reproduction of the dust mites and fungus increases exponentially; at the same time, the evaporation of human sweat is hampered, and the symptoms of asphyxia and slow-retarded lung patients increase significantly, such as dysentery, weak strength and arthritis。
The world health organization (who) recommended that relative indoor humidity should be maintained at between 40 and 60 per cent, and that more than 70 per cent or less could cause disease。
Many are used to blowing wetteners to their faces or beds, even though this practice carries risks. Chen lulu explained that local cold fog currents can bring down the temperature of the face, nose and throat, and can not only induce respiratory infections, but may also cause facial palsy. Experimental data indicate that pm2. 5 concentrations can increase three times in an instant within 30 cm from the vent of the wetner。
Five details, "dangerous" to "safe"
1. Water purification
Prefer distilled water, pure water, and when the conditions are limited, the running water shall be boiled for 10 minutes and cooled and replaced with water after each use。
2. Cleaning machines
Water tanks + convulsions + mist vents can be rinsed with soft brushes + 75% alcohol, 3% hydroxide or chlorine 500 mg/l disinfectant impregnated for 30 minutes and then washed and dried with running water. In addition, water is poured every day and completely disinfected at least once a week。
3. Net air
A combination of humidity meters is monitored at all times. Humidity > 60% immediately suspended. Two to three open windows per day for more than 30 minutes each。
4. Net habits
No oil, disinfectant, chinese medicine; no direct blowing for long periods; no mixing with aerosols or oxygen treatment machines。
Net replacement
Water basins, wet towels, or evaporating humidifiers (no white fog, no pm2. 5) can be placed near the heating。
These symptoms are coming up, they're out of service and they're being treated
Chen lulu reminds that the following symptoms after the use of the humidifier may be signs of respiratory irritation or infection, which require immediate decommissioning and timely medical attention:
Persistence of cough, short-temporal, low-heat, especially aggravated at night
"the chest is suffocated and breathed with a feeling of "tasting"
3. Blood or coughing of yellow and green sept
4. Face and mouth rash with itching。
“during consultation, please inform the doctor, on your own initiative, of the history of the use of the humidifier and, if necessary, conduct a high-resolution ct and serospecific antibodies test.” she stressed that most pathologies could be reversed without delay through hormonal interventions at an early stage。
The correspondent, wang chun
Ying's evening newspaper/violet journalist lu xian
