Dear Obeta Mark Uchejeso, There are several studies conducted on the use of masks during COVID-19. A few relevant articles link is here:

https://jamanetwork.com/journals/jama/fullarticle/2776536

https://www.bmj.com/content/bmj/369/bmj.m1435.full.pdf

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)31142-9/fulltext

Thanks @Hermann

Thanks @Dev

german meta-data:

https://www.mdpi.com/1660-4601/18/8/4344

Thanks @Christian

Please take a look at this useful link.

https://www.pnas.org/content/118/4/e2014564118

Also see the links below.

https://www.thelancet.com/journals/landig/article/PIIS2589-7500(20)30293-4/fulltext

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0248706

https://gh.bmj.com/content/5/5/e002794

https://www.science.org/doi/10.1126/science.abg6296

Please also visit the following RG links.

Article The Impact of Universal Mask Use on SARS-COV-2 in Victoria, ...

Article Association of social distancing and face mask use with risk...

Article Effectiveness of Surgical and Cotton Masks in Blocking SARS–...

Thanks all

A quick PUBMED Research provided following results

Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis.

PMID: 32497510 Free PMC article.Chu DK, Akl EA, Duda S, Solo K, Yaacoub S, Schünemann HJ; COVID-19 Systematic Urgent Review Group Effort (SURGE) study authors.Lancet. 2020 Jun 27;395(10242):1973-1987. doi: 10.1016/S0140-6736(20)31142-9. Epub 2020 Jun 1.

2.

An evidence review of face masks against COVID-19.

PMID: 33431650 Free PMC article. Review.Howard J, Huang A, Li Z, Tufekci Z, Zdimal V, van der Westhuizen HM, von Delft A, Price A, Fridman L, Tang LH, Tang V, Watson GL, Bax CE, Shaikh R, Questier F, Hernandez D, Chu LF, Ramirez CM, Rimoin AW.Proc Natl Acad Sci U S A. 2021 Jan 26;118(4):e2014564118. doi: 10.1073/pnas.2014564118.

3.

Commentary: Physiological and Psychological Impact of Face Mask Usage during the COVID-19 Pandemic.

PMID: 32932652 Free PMC article.Scheid JL, Lupien SP, Ford GS, West SL.Int J Environ Res Public Health. 2020 Sep 12;17(18):6655. doi: 10.3390/ijerph17186655.

4.

Mask use during COVID-19: A risk adjusted strategy.

PMID: 32623270 Free PMC article. Review.Wang J, Pan L, Tang S, Ji JS, Shi X.Environ Pollut. 2020 Nov;266(Pt 1):115099. doi: 10.1016/j.envpol.2020.115099. Epub 2020 Jun 25.

5.

Effectiveness of Face Masks in Preventing Airborne Transmission of SARS-CoV-2.

PMID: 33087517 Free PMC article.Ueki H, Furusawa Y, Iwatsuki-Horimoto K, Imai M, Kabata H, Nishimura H, Kawaoka Y.mSphere. 2020 Oct 21;5(5):e00637-20. doi: 10.1128/mSphere.00637-20.

6.

Airborne transmission of COVID-19 and the role of face mask to prevent it: a systematic review and meta-analysis.

PMID: 33388089 Free PMC article.Tabatabaeizadeh SA.Eur J Med Res. 2021 Jan 2;26(1):1. doi: 10.1186/s40001-020-00475-6.

7.

Face masks vs. COVID-19: a systematic review.

PMID: 33047556 Free PMC article.Fouladi Dehaghi B, Ghodrati-Torbati A, Teimori G, Ibrahimi Ghavamabadi L, Jamshidnezhad A.Invest Educ Enferm. 2020 Jul;38(2):e13. doi: 10.17533/udea.iee.v38n2e13.

8.

Effectiveness of Adding a Mask Recommendation to Other Public Health Measures to Prevent SARS-CoV-2 Infection in Danish Mask Wearers : A Randomized Controlled Trial.

PMID: 33205991 Free PMC article. Clinical Trial.Bundgaard H, Bundgaard JS, Raaschou-Pedersen DET, von Buchwald C, Todsen T, Norsk JB, Pries-Heje MM, Vissing CR, Nielsen PB, Winsløw UC, Fogh K, Hasselbalch R, Kristensen JH, Ringgaard A, Porsborg Andersen M, Goecke NB, Trebbien R, Skovgaard K, Benfield T, Ullum H, Torp-Pedersen C, Iversen K.Ann Intern Med. 2021 Mar;174(3):335-343. doi: 10.7326/M20-6817. Epub 2020 Nov 18.

9.

Mask or no mask for COVID-19: A public health and market study.

PMID: 32797067 Free PMC article.Li T, Liu Y, Li M, Qian X, Dai SY.PLoS One. 2020 Aug 14;15(8):e0237691. doi: 10.1371/journal.pone.0237691. eCollection 2020.

10.

Why the mask? The effectiveness of face masks in preventing the spread of respiratory infections such as COVID-19 - a home testing protocol.

PMID: 32716230 Review.Swain ID.J Med Eng Technol. 2020 Aug;44(6):334-337. doi: 10.1080/03091902.2020.1797198. Epub 2020 Jul 27.

11.

Face masks to prevent transmission of COVID-19: A systematic review and meta-analysis.

PMID: 33347937 Free PMC article.Li Y, Liang M, Gao L, Ayaz Ahmed M, Uy JP, Cheng C, Zhou Q, Sun C.Am J Infect Control. 2021 Jul;49(7):900-906. doi: 10.1016/j.ajic.2020.12.007. Epub 2020 Dec 19.

12.

The face mask: How a real protection becomes a psychological symbol during Covid-19?

PMID: 32526447 Free PMC article. Review.Goh Y, Tan BYQ, Bhartendu C, Ong JJY, Sharma VK.Brain Behav Immun. 2020 Aug;88:1-5. doi: 10.1016/j.bbi.2020.05.060. Epub 2020 Jun 8.

13.

Low-cost measurement of face mask efficacy for filtering expelled droplets during speech.

PMID: 32917603 Free PMC article.Fischer EP, Fischer MC, Grass D, Henrion I, Warren WS, Westman E.Sci Adv. 2020 Sep 2;6(36):eabd3083. doi: 10.1126/sciadv.abd3083. Print 2020 Sep.

14.

Community universal face mask use during the COVID 19 pandemic-from households to travellers and public spaces.

PMID: 32307526 Free PMC article. No abstract available.Raina MacIntyre C, Jay Hasanain S.J Travel Med. 2020 May 18;27(3):taaa056. doi: 10.1093/jtm/taaa056.

15.

What Type of Face Mask Is Appropriate for Everyone-Mask-Wearing Policy amidst COVID-19 Pandemic?

PMID: 32449327 Free PMC article. No abstract available.Kim MN.J Korean Med Sci. 2020 May 25;35(20):e186. doi: 10.3346/jkms.2020.35.e186.

16.

To mask or not to mask children to overcome COVID-19.

PMID: 32388722 Free PMC article.Esposito S, Principi N.Eur J Pediatr. 2020 Aug;179(8):1267-1270. doi: 10.1007/s00431-020-03674-9. Epub 2020 May 9.

17.

COVID-19: Face masks and human-to-human transmission.

PMID: 32223072 Free PMC article. No abstract available.Liu X, Zhang S.Influenza Other Respir Viruses. 2020 Jul;14(4):472-473. doi: 10.1111/irv.12740. Epub 2020 Apr 5.