Arthur Andersen LLP 2100 One PPG Place Pittsburgh, PA 15222-5498 Tel 412 232-0600 Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 11-3 450 Fifth Street, N.W. Washington, D.C. 20549 June 30, 2000 Dear Sir/Madam, We have read the six paragraphs of Item 4 included in the Form 8-K dated June 30, 2000 of NOXSO Corporation to be filed with the Securities and Exchange Commission. We are in agreement with the statements contained in the first, fifth and sixth paragraphs therein. The timing of the above Form 8-K filing and our related letter were delayed due to the various considerations related to the Company's bankruptcy proceedings. Very truly yours, /s/ Arthur Andersen LLP Copy to: Mr. Robert Long, NOXSO Corporation plm/00/nox/ltr/sec8-k