Coronavirus is transmitted in most instances through respiratory droplets, direct contact with cases and also through contaminated surfaces/objects. Though the virus survives on environmental surfaces for varied period of time, it gets easily inactivated by chemical disinfectants. Here are the guidelines for (i) indoor areas, (ii) outdoor areas and (iii) public toilets.
Indoor areas including office spaces
Office spaces, including conference rooms should be cleaned every evening after office hours or early in the morning before the rooms are occupied. If contact surface is visibly dirty, it should be cleaned with soap and water prior to disinfection. Prior to cleaning, the worker should wear disposable rubber boots, gloves (heavy duty), and a triple layer mask.
- Start cleaning from cleaner areas and proceed towards dirtier areas.
- All indoor areas such as entrance lobbies, corridors and staircases, escalators, elevators, security guard booths, office rooms, meeting rooms, cafeteria should be mopped with a disinfectant with 1% sodium hypochlorite or phenolic solution.
- High contact surfaces such elevator buttons, handrails/handles and call buttons,escalator handrails, public counters, intercom systems, equipment like telephone, printers/scanners, and other office machines should be cleaned twice daily by mopping with a linen/absorbable cloth soaked in 1% sodium hypochlorite. Frequently touched areas like table tops, chair handles, pens, diary files, keyboards, mouse, mouse pad, tea/coffee dispensing machines etc. should specially be cleaned.
- For metallic surfaces like door handles, security locks, keys etc. 70% alcohol can be used to wipe down surfaces where the use of bleach is not suitable.
- Hand sanitizing stations should be installed in office premises (especially at the entry) and near high contact surfaces.
- In a meeting/conference/office room, if someone is coughing without following respiratory etiquettes or mask, the areas around his/her seat should be vacated and cleaned with 1% sodium hypochlorite.
- Carefully clean the equipment used in cleaning at the end of the cleaning process.
- Remove PPE, discard in a disposable PPE in yellow disposable bag and wash hands with soap and water.
- In addition, all employees should consider cleaning the work area in front of them with a disinfecting wipe prior to use and sit one seat further away from others, if possible .
Outdoor areas:
Outdoor areas have less risk then indoor areas due to air currents and exposure to sunlight. These include bus stops, railway platforms, parks, roads, etc. Cleaning and disinfection efforts should be targeted to frequently touched/contaminated surfaces as already detailed above.
Public toilets
Sanitary workers must use separate set of cleaning equipment for toilets (mops, nylon scrubber) and separate set for sink and commode). They should always wear disposable protective gloves while cleaning a toilet.
Areas | Agents / Toilet cleaner | Procedure |
Toilet pot/commode | · Sodium hypochlorite 1%/
detergent · Soap powder / long handle angular brush |
Inside of toilet pot/commode:
· Scrub with the recommended agents and the long handle angular brush. · Outside: clean with recommended agents; use a scrubber. |
LID / commode | · Nylon scrubber and soap
powder/detergent · 1% Sodium Hypochlorite |
· Wet and scrub with soap powder and the nylon scrubber inside and outside.
· Wipe with 1% Sodium Hypochlorite |
Toilet floor | · Soap powder /detergent and
· Scrubbing broom brush/ nylonbroom · 1% Sodium Hypochlorite |
· Scrub floor with soap powder and the scrubbing brush· Wash with water
· Use sodium hypochlorite1% dilution
|
Areas | Agents / Toilet cleaner | Procedure |
Sink | · Soap powder / detergent and
nylon scrubber · 1% Sodium Hypochlorite |
· Scrub with the nylon scrubber.
· Wipe with 1% sodium hypochlorite |
Showers area/
Taps and fittings |
· Warm water Detergent powder Nylon Scrubber
1% Sodium Hypochlorite/ 70% Alcohol |
Thoroughly scrub the floors/tiles with warm water and detergent
· Wipe over taps and fittings with a damp cloth and detergent. · Care should be taken to clean the underside of taps and fittings. ·Wipe with 1% sodium hypochlorite/ 70% alcohol
|
Soap dispensers
|
Detergent and water | · Should be cleaned daily with detergent and water and dried. |
[Source: COVID-19: Guidelines on disinfection of common public places including offices Ministry of Health & Family Welfare, Government of India]