Bids Are Invited For Acquisition Of Shell -Type Mufflers In Meeting The Demand Of The Municipal Secretariat Of Tourism And Economic Development

Hearing Protector, Shell (Circum-Uricular), Intended To Protect The Users Hearing System Against Sound Pressure Levels Higher Than Those Established In Regulatory Standard No. 15, Annexes I And Ii, Of The Ministry Of Labor And Employment. Settrically-Mounted By Two Metallic Parts, With Soft Foam Pads And Interior, Providing Comfort And Forces Adequate. Shells Are Sustained By A Rigid Plastic Stirring Rod, With Position Adjustment At The Extremities, Allowing To Adjust The Shells Firmly Sealed Against The Users Ears Region. Acting Noise Attenuation Level Equal To Or Greater Than 21 Db (Nrrsf), And Values ​​Are Accepted Between 21 Db And 25 Db. It Has A Valid Certificate Of Approval (Ca) Issued By The Ministry Of Labor And Employment (Mte), Marking The Ca Number Legibly On The Outside Of The Piece. Color Preferably Black. Size: Single., Childrens Hearing Protector Type Shell (Drilling); Pillow Shells; Rod Above Head; Metal And Pillowed Rod; Size Adjustment; Attenuation: Attenuation Should Be At Least 26 Approximate Dbespecifications. Weight: 202G To 350G And Size: 135X95x177mm The Euricular Pillows Of Soft And Hypoallergenic Material Wrapped In Fabric, Ensuring Comfort Even For Long Periods Of Use. The Handle Should Be Adjustable Allows A Perfect Fit Into Heads Of Different Sizes, From Young Children To Teens And With Soft And Hypoallergenic Material. 29.5 Cm Length, 20 Centimeter Width And Height Of 21Th Centimeters.