import type { RespiratorInput, RespiratorResult } from './types.js';
/**
 * Calculate respirator MUC (Maximum Use Concentration) and protection factor
 * based on OSHA 29 CFR 1910.134 and NIOSH respirator selection guidelines.
 *
 * MUC = APF × OEL
 * Hazard Ratio = Concentration / OEL
 * Protection is adequate when Concentration <= MUC
 *
 * @param input - Respirator input parameters
 * @returns Respirator results including MUC, APF, and protection assessment
 * @throws {RangeError} oel is not greater than 0, or concentration is negative
 * @remarks When concentration is 0 (no hazard present), safetyMargin is Infinity —
 *   an intentional sentinel meaning "any respirator is infinitely adequate".
 */
export declare function respiratorCalculate(input: RespiratorInput): RespiratorResult;
//# sourceMappingURL=respiratorCalculate.d.ts.map