Blog Archives

Deal of the Week – 40% Off the Mini Ioniser 220VAC

Check this link weekly for special pricing on overstock items.

Discover deep discounts on high quality Charleswater ESD Control Products.

Save on your regular stocking orders.

Current Deal of the Week

40% Off the Mini Ioniser 220VAC

ESD Lab Coats

62428 – Mini Ioniser 220VAC UK/Asia Plug

  • Ultra compact size – 5.25″H x 3.5″W x 1.7″D
  • Low offset voltage with feedback alarms
  • Two fan speeds, high and low
  • Adapter must be ordered separately
  • Rapid Access Maintenance
  • Utilizes steady state DC ionization with patented (US Patent #4,974,115) Sense Feedback Control
  • Visual and audible power and alarm indicators
  • Made in the United States of America
  • Low Ozone Emissions – tests well below the OSHA limit of 0.05 ppm ozone

Use code C101 at checkout. Valid for online orders only.

Buy Now


What is a Faraday Cage?

by Gene Felder

A Faraday cage or Faraday shield is an enclosure formed by conducting material or by a mesh of such material. Such an enclosure blocks external static and non-static electric fields. Faraday cages are named after the English scientist Michael Faraday, who invented them in 1836. An impressive demonstration of the Faraday cage effect is that of an aircraft being struck by lightning. This happens frequently, but does not harm the plane or passengers. The metal body of the aircraft protects the interior. For the same reason, a car may be a safe place to be in a thunderstorm.

ESD control products that provide a Faraday Cage or shielding include Charleswater Statshield® Metal-In Bags, and Statshield® Metal-Out Bags, Protektive Pak™ impregnated corrugated with shielding layer when using a lid, and Conductive Totes. Charleswater ESD Lab Coats create a Faraday Cage effect around the torso and arms of the operator and shields charges from the operator’s clothing from damaging ESD sensitive devices. (Technically, suppressing the electrical field from clothing worn underneath).

There are standard tests measuring the energy penetration of electrostatic discharges to the interior. The Shielding test method per EN 61340-5-1 Packaging table 4 is ANSI/ESD STM11.31 and the required limit is less than 50 nanoJoules of energy.

The EN 61340-5-1 Edition 1.0 2007-08 Introduction includes “ESD protection can be achieved by enclosing ESD sensitive products in static protective materials, although the type of material depends on the situation and destination. Inside an EPA, low charging and static dissipative materials may provide adequate protection. Outside an EPA, low charging and static discharge shielding materials are recommended.” []

Faraday cage
“A conductive enclosure that attenuates a stationary electrostatic field.”

Electrostatic discharge (ESD) shield
“A barrier or enclosure that limits the passage of current and attenuates an electromagnetic field resulting from an electrostatic discharge.”

Electrostatic shield
“A barrier or enclosure that limits the penetration of an electrostatic field.”

Note: EN 61340-5-1 Edition 1.0 2007-08 can be purchased from the IEC website.

Come See Us at Productronica 2011!

Our sales team will be available at Productronica 2011 in Munich, Germany!

For information on ESD Control Products, visit Charleswater in Hall A4, Booth 323 from November 15th to 18th.

For more information on the trade fair, please visit