Question: How can more than one student share a school's metered dose inhaler?

Answer passage (source: CDC):
page_title: K-12 Schools and Child Care Programs
section_headers: Administrators
Planning and Responding to COVID-19
If each child has his or her own spacer, can a school’s metered dose inhaler be used by more than one student if the actuator is cleaned before use by another student?
section_content: CDC is not aware of data regarding practices to prevent transmission of the
virus that causes COVID-19 or other respiratory viruses, when multiple people
share one asthma inhaler.
Students should be permitted to use their personal inhaler, as needed, to the
extent permitted by state law and school policies. When students need to use
of the school’s stock inhaler, the inhaler should be used and cleaned
according to the manufacturer’s instructions. The American Lung Association’s
Model Policy for School Districts: Stock Bronchodilatorspdf iconexternal
icon recommends using inhalers with disposable
spacers/mouthpieces.
Additional strategies to further minimize cross-contamination include using
spacers with one-way valves and not allowing the student to touch the inhaler
(e.g., the student can touch the spacer, but only the school staff
administering the inhaler can touch the inhaler). Limited data from
healthcare settingspdf iconexternal
icon suggest
wiping all surfaces of an inhaler with an alcohol-based wipe containing at
least 70% alcohol after inhaler use, and then allowing these surfaces to air-
dry can prevent bacterial cross-contamination. CDC is not aware of data on
whether this has helped prevent viral infections or infections in the school
setting.
CDC is not aware of data regarding viral contamination of spacer devices. A
study evaluating the persistence of SARS-CoV-2external
icon (the virus that
causes COVID-19) on plastic, stainless steel, and cardboard surfaces showed
that the virus is able to remain viable for up to 72 hours. The American Lung
Association’s Model Policy for School Districts: Stock Bronchodilatorspdf
iconexternal
icon recommends using inhalers with disposable spacers
or disposable mouthpieces.
School staff who administer asthma medication to students should use good hand
hygiene, including washing hands
with soap and water for at least 20 seconds before and after administration.
If soap and water are not available and hands are not visibly dirty, staff
should use an alcohol-based hand sanitizer that contains at least 60% alcohol.
People with moderate to severe asthma may be at higher risk of getting very sick from
COVID-19. CDC has more information on COVID-19 for
schools and healthcare
providers
(including school nurses).
CDC has additional information about asthma (non-COVID related) for health
professionals and schools here: https://www.cdc.gov/asthma/info.html

Reviewer feedback on this answer:
Another fine response to the question that has a ton of information and a whole bunch of links to additional detail. This gets to the heart of the question and talks about how things can get cross-contaminated
Specifically addresses whether inhalers should be shared.

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: K-12 Schools and Child Care Programs
section_headers: Administrators
Planning and Responding to COVID-19
If children with asthma use “breathing treatments” or peak flow meters, do schools need to be concerned about aerosolizing the virus that causes COVID-19?
section_content: First, students with symptoms of COVID-19 should not attend school. Symptoms
of asthma and COVID-19 may overlap, including cough and shortness of breath.
Therefore, students experiencing acute asthma attacks should not be attending
school without approval by a healthcare provider; if an asthma attack starts
at school, a student may need a bronchodilator treatment before being sent
home or before an ambulance arrives. The American Lung Association’s Model
Policy for School Districts: Stock Bronchodilatorspdf iconexternal
icon recommends using inhalers with disposable
spacers/mouthpieces and nebulizers with disposable tubing with
mask/mouthpieces. Inhalers and nebulizers should be used and cleaned according
to the manufacturer’s instructions.
During this COVID-19 pandemic, asthma treatments using inhalers with
spacers (with or without face mask,
according to each student’s individualized treatment plan) are preferred over
nebulizer treatments whenever possible. Based on limited data, use of asthma
inhalers (with or without spacers or face masks) is not considered an aerosol-
generating procedure.
Based on limited available data, it is uncertain whether aerosols generated
by nebulizer treatments are potentially
infectious. During this COVID-19 pandemic, nebulizer treatments at school
should be reserved for children who cannot use or do not have access to an
inhaler (with or without spacer or face mask).
Schools should obtain the appropriate personal protective equipment (PPE) for
staff who administer nebulizer treatments. PPE for use when administering
nebulizer treatments to students with asthma consists of gloves, medical grade
facemask and eye protection.
School staff should be trained on when to use PPE, what PPE is necessary,
where this PPE is stored, how to properly don (put on), use, and doff (take
off) PPE, and how to properly dispose of used PPE. CDC has
information on using PPE. Staff
should also be trained on how to administer nebulizer treatments.
During this COVID-19 pandemic, if a nebulizer treatment is necessary at school
for a student, the number of people present in the room should be limited to
the student and the staff member administering the treatment. If appropriate
based on the student’s age and level of maturity, the staff member could leave
the room and return when the treatment is finished. After the nebulizer
treatment, this room should undergo routine cleaning and disinfection. CDC has
information on how to clean and
disinfect and how to prevent asthma attacks triggered by cleaning and
disinfecting
activities.
Use of peak flow meters, including in the school setting, includes forceful
exhalation. Forceful exhalation is not considered an aerosol-generating
procedure associated with increased risk of transmitting the virus that causes
COVID-19. However, for some people with asthma, using a peak flow meter can
trigger cough.
People with moderate to severe asthma may be at higher risk of getting very sick from
COVID-19. CDC has more information on COVID-19 for
schools and healthcare
providers
(including school nurses).

Reviewer feedback on this answer:
Gives clear advice about handling inhalers for children with asthma.
This is a very detailed response to the question and should cover all subsequent questions that would logically come up from this. I think this is probably the best answer you're going to get on the subject

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: Living in Shared Housing
section_headers: The facility
section_content: 
COVID-19 prevention supplies should be provided in common areas, such as soap, alcohol-based hand sanitizers that contain at least 60% alcohol, tissues, trash baskets, and, if possible, cloth face coverings that are washed or discarded after each use.
Non-essential volunteers and visitors in shared areas should be limited or avoided.
Staff should avoid entering residents’ rooms or living quarters unless it is necessary. Staff should use virtual communications and check ins (phone or video chat), as appropriate.


Reviewer feedback on this answer:
Does not specifically address asthma or inhalers.
This doesn't have anything to do with the question. They were looking for something about inhalers and there's no mention of that in this response. Misses the mark

Reviewer ratings:
Bad
Bad