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Dear Department of Health,

I would like to know

1. What research and clinical trials have been conducted on the 'continuous' wearing of surgical face masks and the results of such exercises including duration and time.

2. The data of research, observations, clinical trials, experiments conducted on the outcome of breathing in exhaled breath and or CO2.

Yours faithfully,

Miss S ROZARIO

Department of Health

Dear Miss S ROZARIO,
We wrote to seek clarification on your information request in the
preceding emails dated 31.8.2021 and 2.9.2021 but no response has been
received so far.  Grateful if you would clarify/provide the required
information by 20 September 2021.  Otherwise, our Department is unable to
process your request.
If we can be of any assistance in the provision of other information in
the future, please contact Francis CHING, CO(Per)SD at 3107 2581.  Thank
you.

Regards,

(Miss Cheyenne LEE)
for Director of Health

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